PORTLAND, Ore. -- An Oregon high school student is being charged with attempted murder after the authorities say he planned to attack his high school with bombs.

The student, 17-year-old Grant Acord, was taken to a juvenile jail Thursday night after police received a tip that the youth was making a bomb to blow up West Albany High School.

Benton County District Attorney John Haroldson said late Saturday that authorities found six bombs in a secret compartment in the teen's bedroom.

Haroldson said Acord had written plans and checklists, and his intent was "forged and inspired by the model of the Columbine shootings."

Haroldson said the teen is being charged as an adult.

Police found no bombs during a search of West Albany High, which about 75 miles south of Portland. 

Pool / Getty Images file

George Zimmerman, defendant in the killing of Trayvon Martin, stands in the Seminole Circuit Court with his attorney Mark O'Mara for a pre-trial hearing on April 30, 2013 in Sanford, Fla.

Attorneys for George Zimmerman say that unreleased text messages drawn from Trayvon Martin’s cell phone show the 17-year-old was arguing with a friend and was “angry” on the day he was shot and killed in Sanford, Fla.

“This is relevant to Mr. Martin’s overall demeanor that day and relevant to his emotional state,” a new court filing by the defense team reads. The filing goes on to say the messages “may assist the jury in understanding why Trayvon Martin chose to hide and then confront George Zimmerman rather than simply going home.”

The document, filed with the court in Sanford and made public Friday, is the latest in a back-and-forth over the admissibility of character evidence related to Martin, whose death on Feb. 26, 2012 spurred a national conversation about race, guns, and Florida’s expansive self-defense laws.

Zimmerman, 29, is accused of second degree murder in Martin’s death and will face trial June 10. He has plead not guilty, telling police he resorted to self-defense after Martin punched him and beat his head to the ground after the two crossed paths inside a gated community that night.

Prosecutors have asked the court to prohibit text messages and other materials related to Martin’s life, arguing the materials are irrelevant to the circumstances surrounding the teen’s death.

At a key hearing next week, Judge Debra S. Nelson will hear arguments over what evidence should be admissible at trial.

Thursday, Zimmerman’s lawyers released a slew of evidence culled from Martin’s cell phone, including two pictures of a handgun, and text messages that appear to refer to an organized fight and smoking marijuana.

"He got mo hits cause in da 1st round," Martin says in a November 2011 message, apparently referring to a fight. "He had me on da ground nd I couldn’t do ntn."

In the filing made public Friday, Zimmerman's lawyers say the messages show Martin was an experienced fighter, and that marijuana use "can affect one's judgment and demeanor and is known to cause paranoia and aggression in some."

Text messages between Martin and the friend referred to as Witness 8 from the night of the shooting are redacted in the defense's Thursday release.

Legal experts, citing strict standards for evidence under the law, say it’s not likely the materials will be admitted. 

In a release Thursday, a lawyer for Martin’s family, Benjamin Crump, called the release of the materials from Martin’s phone a “desperate and pathetic attempt by the defense to pollute and sway the jury pool.”

But in an interview, Mark O’Mara, Zimmerman’s lead attorney, said he doesn't presume all of the evidence will be admitted.  Gathering and sharing materials is part of the normal course of discovery in Florida, O’Mara said, where prosecution and defense are required to swap evidence before trial.

"I'm not sure that any of the stuff about Trayvon Martin's background or my client's background will be relevant," O'Mara told NBC News. "If they were to not go into George's background, and not suggest that Trayvon Martin was an angel, we won't go there either.”

In July, the State released an FBI report that included an interview with an ex-fiancee who filed an injunction order against Zimmerman after an altercation.

Prosecutors also released a photocopy of a MySpace page from 2005, on which Zimmerman appears to disparage Mexicans.

Zimmerman’s attorneys say their client, whose mother is Peruvian, harbors no prejudice. The FBI report also concluded there was no evidence Zimmerman ever demonstrated any racial bias.

Also Friday, the court released a second document by the defense, pushing for a hearing to examine State studies of a 911 tape that captured screaming on the night of the shooting. Lawyers for Zimmerman are seeking to prevent voice analysts hired by the prosecution from testifying at trial.

Follow @JamieNBCNews

Follow @Tom_Winter

Related:

Zimmerman defense releases texts about guns, fighting from Trayvon Martin's phone

By Craig Stanley, NBC News

Some mornings, beneath the streets of Boston, David France plays his violin for the passers-by who fill the subway corridor. Some stop to listen, while others acknowledge him by dropping money into the empty violin case that lies at his feet.

France uses this money to fund Revolution of Hope, an after-school orchestra he started a few months ago in the disenfranchised community of Roxbury.

He sought to start the program after completing the New England Conservatory's Sistema Fellows Program, which sent him to Venezuela. There, he studied the El Sistema model, a community music education program that brings instruments and instruction to underprivileged kids, often with transformational results.

After completing the fellowship, participants are charged with expanding music education in a similar format, across the world. France chose the inner-city community of Roxbury.

"I think so many times when we think of an inner city, we don't allow ourselves to imagine their worlds outside of what's been stereotyped," France said. "I would say in the inner city, to be a classical music lover is definitely to be rebellious."

Armed with a clear goal, France took Roxbury by storm, visiting school after school, attempting to convince their leaders to allow him to start a program - without compensation - to help their students. He eventually met Jose Duarte, principal of Dearborn Middle School, who gave him the opportunity to advance his mission.

"He just came day after day, and he told me he had this vision of getting kids to play the violin," Duarte said. "His persistence and his resiliency, and having a vision of how he can help us was outstanding and dynamic."

Duarte decided to host the program at his school, and opened it up to the entire local community. He saw this as a unique opportunity to address a special need.

"Most kids in America in the suburban communities get to play music. They get to learn an instrument," Duarte said. "But why is it that kids in urban settings don't? It's not because they're incapable of playing or they don't... don't have that talent. It's that they've never been exposed to it, they've never had the opportunity."

After securing a venue, France gained further support, acquiring 22 donated instruments for the children. With the help of an assistant, instructors and a small army of willing participants, Roxbury Orchestra was born.

Today, five days a week, 12 dedicated kids convene at the middle school for instruction and socializing. They come for music, but they also come for each other, and especially for France, who has proven to be a dedicated source of support and direction for the group.

"They come and they realize I'm on their side. Even if I give them a hard time. Even if it's grueling, because they can see they're making an improvement," France said. "Every day they come, I try to produce a daily miracle to show them they can do something a little better - and understand that I'm going to show up the next day, and this program will be there for them."

For Nedgie, a student participant who's immigrated from Haiti, this program has reconnected her with a passion she thought would be out of her reach forever.

"I was part of an orchestra in Haiti. Here, I didn't have any connections, I didn't know where to go or how to get involved in a program like this," she said. "It brings me back home. The feeling I have now, playing it, it just motivates me to keep playing and get better every day that I practice."

Some students noticed improvement in other aspects as well.

"[Playing the violin] has brought me out of my shell. I'm usually the shy one," Amaya, another student, admits. "I never thought that I'd be playing an instrument."

"I would love for her to do this, to play and keep it forever," Amaya's father added. The way I see it, music goes with academics and she's improved so much. I see a difference, especially in her patience with math."

Beyond academic and artistic growth, the program provides a unique social development, as it helps build a community.

"They have a place to be to center and be among people who have common bonds, people who are diverse, and people who will not laugh at their talents," Betty Neal Crutcher, a board member for the newly formed orchestra, said. "These are very smart young people, and they would be smart anywhere. Music brings them together."

France hopes to grow the program, and to one day have it all over the city of Boston - at least, for starters.

"I don't see my program as just kind of the inner-city orchestra down the street. I see it as a world class youth orchestra in its beginning stage."

As community support increases -- as does the musical proficiency of his students -- it seems to be an admirable - and plausible - goal.

"We are fortunate that we live in a community that has many people who are very interested in supporting schools and supporting kids," Duarte said. "[They] understand that unless and until we support our children, we're not making a better future for ourselves."

By Ron Mott, Correspondent, NBC News

MOORE, Okla. – As it was for many of her classmates here, Saturday’s high school graduation was an emotional ceremony for 18-year-old Alyson Costilla, a moment of pride long anticipated.

But unlike most of her peers, she accepted her diploma one day after a final farewell to her mom, Terri Long, one of 24 people killed in Monday’s devastating tornado.

“She talked about how exciting, like how excited she was to see me walk across the stage,” Costilla said, choking back tears. “How excited she was going to be for me to move to college.”

Costilla’s mother was aware ominous weather was headed toward town and authorized the school to allow her daughter to leave early for home.

While waiting there for her mom to arrive -- who, too, had left early from her job at the Federal Aviation Administration to check on Costilla -- the phone rang.

“She called and told me I needed to get out of the house and drive as far south as I could. So, I did,” Costilla said.

Fleeing for safety as the massive tornado churned and roared ever closer, Costilla repeatedly tried reaching her mother.

“She wasn’t answering,” she said. “Eventually got through to her and she told me she was on I-44 and driving toward the house, which I didn’t understand.”

After a few harried minutes, both mom and daughter behind the wheel, they connected again by cell phone.

“She stopped at the 7-Eleven, and we don't know why because it's not on her way home,” Costilla said. “She said she was in the 7-Eleven in a bathroom with a whole bunch of people, and she said she was going to wait it out.”

Terri Long never made it out of the convenience store alive.

For her worried family, it would take an agonizing delay to learn her fate.

“After it happened, my sis called me and told me that 7-Eleven had been hit,” Costilla said. “We were calling all the hospitals and none of them had her.

“You think it would never happen to you, like, mom's strong. She's going to get through it. It’s not going to happen to her.”

Later, Costilla’s uncle identified her mom’s body at the morgue.

When her name was called at the graduation ceremony Saturday—one of three for Moore’s high schools—Costilla’s biggest supporter was missing. In the audience, though, as friends and family cheered her accomplishment, there were large photographs of Terri Long clutched in their hands.

“It's just really hard because I wanted her there, and you can't physically hug her,” Costilla said.

Ever since the unimaginable happened Monday afternoon, however, Costilla’s heart has been engaged in an unbreakable emotional embrace.

Tucked among the cornfields, windmills and water towers of Littlefield, in west Texas, Dr. Isabel Molina treats one patient after the next at Lamb Healthcare Center.

Littlefield is a small, dusty town of about 6,500 people, but Molina's two-doctor practice draws from a much larger area. She and her partner serve a total population of about 15,000, she estimates. To keep up with her patient load, Molina regularly works 13-hour days without stopping to eat.

"I usually eat breakfast over charts. I usually eat lunch over charts while I call patients back and take care of my dictations," says Molina, 38. "I do love what I do, but it is getting a lot harder to do this."

Molina is just one of thousands of primary care doctors nationwide working in an area designated as having too few health professions to meet the needs of the population.

The Association of American Medical Colleges (AAMC) estimates that there is a shortage of up to 20,000 physicians and that the deficit will grow to 100,000 physicians in the next decade. An aging population - and an aging population of physicians themselves - will make matters worse as health needs become more severe and as doctors retire without enough new ones to replace them. And, millions more Americans will rely on our existing physicians when the Affordable Care Act fully kicks in next year.

"We are very concerned that we're going to hand insurance cards to 30 million people and we won't have the doctors to treat them," says Dr. Atul Grover, the chief public policy officer at the AAMC.

West Texas is one pocket of the country where entire counties lack even a single health care provider. The dire need inspired an innovative program at Texas Tech University Health Sciences Center in Lubbock, Texas.

"We felt at Texas Tech that it was very important to help solve the primary care crisis as best we could and one of the ways of doing that was to try to make sure we get enough students into primary care and into family medicine," says Dr. Steven Berk, the dean of the School of Medicine at Texas Tech University Health Sciences Center.

From that concern, the Family Medicine Accelerated Track (FMAT) was born at Texas Tech. The program teaches the competencies of four years of medical school in only three years and offers a scholarship to all students in their first year.

Keeley Ewing-Bramblett is a third-year medical student at Texas Tech who grew up in the rural, one-physician town of Post, Texas, and saw firsthand how overloaded the town's only doctor was.

"I really just want to go back to a place where I know I'm going to be making an impact and where I'm going to get to see kind of the fruits of that impact," says Ewing-Bramblett, 24. She signed up for the FMAT program the day she heard about it, and hasn't looked back.

"When they offered an accelerated track where I could get out and be doing what I love essentially a year sooner and also for half the amount of debt that would have otherwise been incurred, for me it was kind of a no-brainer,” recalls Ewing-Bramblett.

To curb the physician shortage, medical schools across the country have boosted their enrollment by 16.6 percent since 2000. Five-thousand more students are expected to graduate per year by 2019, according to the AAMC. 

But just graduating more students won't reverse the physician shortage.

There has been a bottleneck to getting more young doctors into residency programs: the stage in medical training that follows graduation from medical school and takes place under the supervision of licensed physicians. The number of federally funded residencies has been frozen since 1997 when Congress passed the Balanced Budget Act.

"A lot of the benefit of increasing those class sizes and building those new medical schools - a lot of those benefits won't be realized unless there's additional residency positions," admits Berk.

Of almost 22,000 U.S. medical school graduates who wanted to be "matched" to a residency position this year, 1,600 applicants did not find one, according to the National Resident Matching Program that places residents.

That's one more reason why lawmakers are stepping in. Congressman Aaron Schock (R-IL) and Congresswoman Allyson Schwartz (D-PA) introduced the "Training Tomorrow's Doctors Today Act" in March that would create 15,000 new Graduate Medical Education slots over the next five years.

In an interview, Schock stressed that, "We know that a crisis is coming where there are more and more Americans who need doctors that are going to go without if we don't get them trained and in the field."

Even if the bill passes - no easy task in an era of squeezed budgets - there is no guarantee that new doctors will practice in the areas where they are needed most.

"Physicians cluster in urban centers where they can work with each other efficiently and leave the rural areas and some other areas underserved in the process," explained Dr. Richard "Buz" Cooper, director of the New York Institute of Technology's Center for the Future of the Healthcare Workforce.

Back in Littlefield, Molina bounds from one appointment to the next. "When you're this short-staffed, it becomes something that is at the cost of everything else. Missing things with my kid, missing things with my family," she admits.

As she leaves one exam room, files the necessary stack of papers and steps into another room to asses a patient, , she smiles all the while. "Once I actually have help, I think then I'll be able to relax and see what a real life feels like again."

Dr. Michael Johns, a professor in the Schools of Medicine and Public Health at Emory University, says it will take wider reform to get doctors the help they need. "Just having more doctors is not going to fix this." he says. "For one, we need a team-based approach that will get nurses, and other members of the healthcare team more involved with more responsibility."

And, while the Family Medicine Accelerated Track will graduate more family care doctors, it does nothing to increase the number of specialty physicians nationwide.

"What everyone is missing is that a little over half of the shortage is in specialty medicine," argues Johns. "The battle shouldn't be about having a 30-to-70 ratio of specialists to primary care doctors, it should be about how we have a shortage of both."

The slow pace of reform is frustrating for medical students like Ewing-Bramblett who chose  primary care medicine because her mother suffers from chronic illness and a primary care physician made an outstanding difference in her care.

"It hurts me on a few levels," said Ewing-Bramblett. "There's just no way that you can establish the type of relationship with your patients that's going to really foster their care like I experienced with my mom. There's no way you can do that in the 10 minutes that you have to see each patient."

For now, all she can think to do is hold on to her determined spirit. She knows what to expect: the long hours, waiting rooms packed with patients, even personal sacrifices.

"There's really no question about where I want to go," she says. "I'm going to be making a difference in at least one small community."

The wet weather plaguing many parts of the U.S. this holiday weekend has turned fatal in sodden San Antonio.

Two people are dead and more than 100 were rescued Saturday after heavy rain pummeled the Texas city, causing flash flooding.

The majority of rescues were people trapped in their vehicles in low-lying areas of the city, San Antonio Fire Department spokesman Christian Bove told NBC News.

Bove said a 29-year-old woman was trapped in her vehicle and tried to escape the rising water by climbing onto the car's roof. She was washed away, and her body was found down the road against a fence.

A woman in her mid-60s was found dead hours after her car was swept away in Leon Creek, Bove said. He said a rescue boat had just reached her car when the car rolled over, knocking the firefighters into the water. By the time they were able to get back into the boat, the car was submerged and they last sight of it, Bove said.  

A man who had been trapped in his vehicle is unaccounted for.

Eric Gay / AP

A San Antonio metro bus sits in floodwaters after it was swept off the road during heavy rains.

Bove said about 130 people had been rescued, most in vehicles. He said dozens of homes suffered flood damage and part of the roof of an apartment building collapsed.

Flooding along the San Antonio River in Bexar County outside the city forced evacuation of more than 60 people, county spokeswoman Laura Jesse said. She said at least 16 people were rescued from vehicles but there were no reports of injuries or fatalities in the county.

A small tornado touched down in the suburb of Live Oak, causing minor damage to homes, a hospital and a medical building, the National Weather Service confirmed.

Weather Channel Meteorologist Nick Wiltgen said San Antonio received 12.16 inches of rain in the 24 hours ending at 11 a.m. Central Time on Saturday. That is just shy of the 24-hour record for the city of 13.35 inches in October 1998.

Bove said the city was expecting more rain overnight.

Eric Gay / AP

A man surveys floodwaters caused by heavy rains Saturday in San Antonio.

EPHRATAH, N.Y. -- A small airplane operating as a volunteer Angel Flight crashed into a pond in upstate New York on Friday evening, killing at least two people, authorities said.

Fulton County Sheriff Thomas Lorey said the flight's two passengers were found dead and investigators are searching for the pilot, who is missing. Officials did not immediately identify the passengers or pilot.

The Piper PA 34 airplane originated in Massachusetts and crashed about a half-mile west of Caroga, N.Y., just after 5 p.m. Friday, Federal Aviation Administration spokeswoman Kathleen Bergen said.

Lorey said the twin-engine plane crashed in a wooded area in Ephratah, about an hour west of Albany.

"The bulk of the plane is in the water, in a pond, completely submerged and we have to wait until daylight to put divers in," the sheriff said.

Larry Camerlin, president and founder of Angel Flight Northeast, a nonprofit group that arranges free air transportation for sick patients from volunteer pilots, said the organization was "tremendously saddened" by the tragic news of the crash.

"We all offer our thoughts and prayers to the families of those affected," Camerlin said in a statement. "Our volunteer pilots are the most compassionate and generous individuals who donate their time, aircraft and fuel to transport patients and loved ones for free to essential medical care that would otherwise not be readily available to them. There are no words that can adequately express our sorrow."

An employee at an ice cream shop in nearby Johnstown who refused to give her name said she heard what sounded like engine failure and then a loud explosion, "like a gun shot."

She said she went outside and "there were pieces of airplane coming out of the sky."

The FAA and the National Transportation Safety Board will investigate the crash, including what the weather conditions were like at the time of the accident.

At the time of the crash, in Rome, N.Y., visibility was 10 miles, there was slight rain and winds of about 13 to 14 mph, according to National Weather Service meteorologist Brian Montgomery.

The flight departed from Hanscom Field in Bedford, Mass., and was headed to Rome, N.Y., before crashing about 57 miles to the east, near Caroga, according to Bergen.

Camerlin's statement said that since Angel Flight NE was founded in 1996, the group has set up free air transportation and medical care for more than 65,000 children and adults on about 60,000 flights covering a total of more than 12 million miles. 

-- The Associated Press

By Becky Bratu, Kate Snow, Tim Uehlinger and Jay Kernis, NBC News

As she tours the husk of Plaza Towers Elementary School in Moore, Okla. -- the little that was left behind after a powerful tornado shredded everything in its 17-mile path -- Principal Amy Simpson thinks back to Monday morning, when her biggest task was helping the sixth-graders get ready for their graduation ceremony.

Pre-K teacher Linda Patterson and aide Kaye Johnson were working on report cards, while kindergarten teacher Erin Baxter was having her 6-year-old students write about the weather.

Four miles to the east, Susie Price began the last week of her 41-year career in public education preparing her retirement speech, getting ready for graduation -- and watching the sky for any possible threats.

“That’s what we do in Oklahoma on those days,” Pierce, the Moore Public Schools superintendent, told Rock Center’s Kate Snow.

Hours later, a Category EF5 tornado would touch down killing 24 people, injuring more than 370 and destroying as many as 13,000 houses.

Sixteen minutes. That was how long Pierce had to prepare between the time she heard that a tornado had hit the ground and the time Moore was in the middle of it.

“It's not a lot of time,” she said. “But because I know these people and I know everybody that works in our district. … we've been through this before.  I know that they know what to do.”

“This is part of our reality,” Pierce added.

Simpson was on alert after receiving an email from the district office about an incoming storm. Not long after, she heard the thunder.

The storm began getting heavier with hail that pummeled the school’s skylights. Then sirens started going off.

It’s not uncommon to hear sirens in Oklahoma, but she knew she couldn’t take any chances.

“Get into your places,” Simpson said over the school’s loudspeaker system.  

“They know exactly what that means,” she said. “It means hallways, bathrooms, the safest places in the building."

The kids got on their knees.  They put their heads right up against the hallway brick wall and covered the backs of their necks with their hands and their heads with their backpacks. To keep calm, teachers led them through the ABC song and “Twinkle, Twinkle, Little Star.”

Baxter, the kindergarten teacher, could hear the storm coming.

“It’d get louder. And you'd think it would be about to hit. And then it'd just get louder and just louder,” she recalled.

By that point, teachers were using their bodies to protect the children. Right before impact, Simpson got on the loudspeaker one last time.

“It’s here,” she remembers saying, before quickly ducking into a bathroom as the tornado smashed into the building.

“At first, it's just a rattling, like someone walking on the roof.  And then you feel things fall into your hair.  Just little things, you know?  Nothing more than if somebody was up there fixing the air conditioning unit,” she said. “And it's -- but then all of a sudden-- bigger things.  Could hear the air duct crash down and a pipe. … And that's when I started to yell.”

"In God's name, go away. Go away,” Simpson remembers yelling.

As she climbed out of the debris, Simpson noticed most of the walls around her were gone.

In a different part of the building, Patterson, the pre-K teacher, was pinned under a wall, some 2-by-4s and a car the tornado had spun up and dropped on top of the collapsed wall.

“I'm hearing the child under me saying, ‘I'm not breathing. I can't breathe,’ because I had weight on her, you know?” Patterson recalled. 

“That's where I needed to be. I needed to be between that debris and those children,” she added.

Rescuers poured into the school, pulling kids and teachers from the debris, but Simpson noticed none of the third-graders had come out.

Third-grade teacher Jennifer Doan, who was just finishing her second year in the classroom, had just found out she was pregnant. Now Doan was shielding two boys with her body, trying to hold up a collapsed wall, Superintendent Pierce said.

“The little boy said, ‘Can't breathe. I don't want to die.’ And as [Simpson] said, they pulled Miss Doan out and that little boy,” Pierce said. The second little boy was buried by debris and didn’t make it.

Simpson said Doan could hear other children crying. “And she was hearing crying, and crying, and crying.  And then after the tornado, the crying stopped.  And it's -- what she said was, ‘The crying was horrible, but when it stopped, it was worse.’”

Of the seven children who died at Plaza Towers Elementary, six were in Doan’s class. The teacher suffered multiple injuries, but her unborn child is fine. Her friends say she’s been told about the children’s deaths and is overcome with grief.

“God makes our choices for us long before, and he had a plan long before,” Simpson said. “And those little ones, there was no control over it. There wasn't a safer place. There wasn't a better place. There wasn't anything different that Miss Doan could do.”

This weekend, bulldozers will roll in to clear away what remains of Plaza Towers Elementary  –  but Simpson said the only way to move on and process the loss is to rebuild.

“We have a million and one things to do,” she said. “So staying busy is a big part of that.” 

Editor’s Note: If you would like to help the Moore Public Schools, click here ( www.Fundly.com/moorepublicschools ) or write to this address:

Moore Public Schools Tornado Relief Fund
1500 SE 4th
Moore, OK 73160

NBC News' Sylvie Haller, Sabrina Esposito, Jessica Kerry and Michelle Kessel contributed to this report.