Boston mobster James ‘‘Whitey’’ Bulger is out of the hospital and back in jail, where’s he’s awaiting trial for his alleged role in 19 slayings, The Boston Globe reported.

The US Marshals Service confirmed Tuesday that Bulger, 83, a former paid FBI informant, was back in custody at the Plymouth County Correctional Facility. The Marshals Service released no other information to the Globe.

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Bulger was taken to Boston Medical Center early Sunday after complaining of chest pains; he was previously examined at a Boston hospital in December.

He has a history of heart trouble. Bulger’s ongoing illness had led to reports speculating that his trial scheduled in March could be delayed.

Defense attorneys have already asked for an eight-month delay as they review more than 300,000 case documents. Bulger in 2011 pleaded not guilty to a 32-count federal racketeering indictment accusing him of participating in 19 murders,  extortion, money laundering and weapons charges in crimes committed while allegedly running a South Boston-based criminal enterprise that began in the 1970s and continued after he fled in 1995.

Bulger fled Boston in 1994 after being tipped off by a corrupt FBI handler, according to prosecutors.

He was one of the FBI’s most wanted fugitives until he was captured in June 2011 in Santa Monica, Calif., with his longtime girlfriend, Catherine Greig. The couple had lived quietly in the oceanside city at least 1996, prosecutors said.

Greig, 61, pleaded guilty last June to helping Bulger stay on the lam and was sentenced to eight years in prison and fined $150,000 by a federal judge who said that she had aided “someone accused of the most serious crimes imaginable” to evade capture by law enforcement.

“We’re all responsible for what we do,” U.S. District Judge Douglas P. Woodlock told Greig at her sentencing hearing after her defense team had claimed she was a victim of her love for Bulger. “We all make choices.”

Bulger’s lawyers last month in court papers claimed late federal prosecutor Jeremiah O’Sullivan gave the gangster free reign to commit his alleged underworld reign of terror.

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Mobster James "Whitey" Bulger was taken to a Boston hospital Sunday after complaining of chest pains at the prison where he is awaiting trial for his alleged role in 19 murders, local media reported.

Bulger, 83, the former leader of the Winter Hill Gang, was hospitalized Sunday for chest pains at Boston Medical Center, according to The Boston Globe.

Plymouth Fire Department battalion chief Kevin Murphy told The Globe that firefighters responded to the Plymouth County Correctional Facility at 1:48 a.m. Sunday and took Bulger to the hospital.

WBUR-FM in Boston first reported that Bulger was hospitalized for chest pains, citing unnamed law enforcement sources.

According to NBC affiliate WHDH in Boston, security has been heightened at the medical center, and Massachusetts State Corrections officers are working in shifts during Bulger's stay. U.S. marshals are also at the site guarding Bulger, WHDH reported.

“Maybe he's trying to get a rest, get out of the jail cell for a while,” a local resident told WHDH.

A Boston Medical Center representative refused to comment on the hospital's public safety plans, WHDH said.

The U.S. attorney's office, the U.S. Marshals Service, and Bulger attorney Hank Brennan declined to comment.

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Bulger's trial is scheduled to begin in March, but his lawyers have said they cannot be ready by then because they are reviewing more than 300,000 documents turned over by prosecutors. Last week, they asked that the trial be moved to November 2013.

Bulger's lawyers said in court papers filed Friday that the current trial date infringes on Bulger's constitutional rights to effective counsel and due process.

Bulger's lead attorney, J.W. Carney Jr., has repeatedly complained that prosecutors have turned over documents in a disorganized fashion. Prosecutors have accused Carney of using stall tactics.

Whitey Bulger's lover gets 8 years in prison

Bulger fled Boston in 1994 and was captured last year in Santa Monica, Calif.

The defense says Bulger was an FBI informant who had immunity to commit crimes while he was providing information about the Mafia, his gang's main rival. In court papers filed this week, Carney identified former U.S. Attorney Jeremiah O'Sullivan as the federal official Bulger claims gave him immunity. O'Sullivan died in 2009.

Prosecutors say Bulger never received immunity from anyone.

The Associated Press contributed to this report.

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BOSTON -- The longtime girlfriend of former mob boss James "Whitey" Bulger pleaded guilty Wednesday to charges she helped Bulger evade capture during 16 years on the run.

In a deal with prosecutors, Catherine Greig pleaded guilty to charges of conspiracy to harbor a fugitive, identity fraud and conspiracy to commit identity fraud.

Bulger, who was captured with Greig last year in Santa Monica, Calif., has pleaded not guilty to charges of participating in 19 murders.

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Each of the three charges Grieg pleaded guilty to carries a maximum sentence of five years, but prosecutors told families of people believed killed by Bulger that Greig could face less than three years in prison under federal sentencing guidelines.

Greig's plea agreement doesn't require her to testify against Bulger, and prosecutors have agreed not to charge her with anything else. They also won't make a sentencing recommendation to a judge.

Sentencing is set for June 12.

Steven Davis, who says his sister, Debra David, was killed by Bulger, was allowed to give a victim impact statement in court Wednesday. He called Greig a "monster," and said she delayed the families' their opportunity to get justice for more than 16 years.

Greig didn't look at Davis as he spoke but stared straight ahead.

Before Greig entered her plea, Judge Douglas Woodlock questioned her about her background and whether she understood she was giving up her right to defend herself at a trial.

When Woodlock asked whether she had received any psychological counseling, Greig broke down in tears and composed herself before responding that she received counseling in 1984 after a family member's suicide.

Patricia Donahue, who says her husband, Michael, was killed by Bulger, said afterward that Greig's tears didn't make up for hiding Bulger.

"Where was she when I was crying?" Donahue said. "I don't think she's a monster. I think that she just made a lot of bad choices, and those choices hurt a lot of people."

In a statement of facts filed in court Monday, Greig acknowledged that she agreed to join Bulger on the run beginning in early 1995.

She also acknowledged that she agreed to conceal him from authorities for 16 years, used aliases and unlawfully obtained identification documents and repeatedly helped him obtain prescription medication from a pharmacy by claiming to be his wife.

"I engaged in conduct that was intended to help Bulger avoid detection from law enforcement and to provide him with support and assistance during his flight from law enforcement," the document states.

Bulger, now 82, headed Boston's notorious Winter Hill Gang and also was a longtime FBI informant who gave the agency information on the rival New England Mafia. Bulger's former FBI handler, John Connolly Jr., was convicted of warning him that he was about to be indicted, prompting him to flee Boston in late 1994.

Bulger and Greig were caught in June, just days after the FBI began a new publicity campaign focusing on Greig and aimed at a female audience. The FBI said on Greig's wanted poster that she frequented beauty salons and had well-kept teeth and multiple plastic surgeries. The Boston Globe has reported that the tipster who reported the couple's whereabouts was a woman from Iceland who spent months at a time in Santa Monica and had bonded with Greig over a stray cat.

The 60-year-old Greig, a former dental hygienist, has been held in jail since her arrest. During a bail hearing in July, her lawyer described her as a subservient woman who was in love with Bulger and unaware of the extent of his crimes when she fled with him.

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