One Goh, the man charged with killing seven people at the Oikos University Christian college in Oakland, California, has said he is “deeply sorry” for the families of his victims, in an interview from jail.

“Families are so angry with me,” he told CBS San Francisco at the Santa Rita Jail, Calif. “(But) if I tell them sorry, it doesn’t bring anybody back.”

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Goh, 43, a native of South Korea and former student at the school, has been charged with seven counts of murder and three counts of attempted murder at the Oikos University – the deadliest U.S. campus attack since the shooting at Virginia Tech in 2007. He has not yet entered a plea.

Police have said Goh was targeting an administrator who had been involved in his financial dispute with the school.

When he learned she wasn't there, police say, he began shooting in classrooms. Police are also investigating whether Goh might have been seeking multiple targets.

CBS San Francisco reporter Julie Goodrich said that as they spoke, Goh kept his head down. His eyes were bloodshot and at one point he started to cry, she said.

She added that he spoke English clearly, despite accounts in the aftermath of the shootings that he had struggled with the language and was teased because of his lack of fluency.

“I was studying to be a nurse … but it didn’t happen. It is complicated to explain,” he told her.

Meanwhile, the director of the nursing program at Oikos college, said her students don't want to return to the classroom building where the shootings took place.

Ellen Cervellon said Wednesday that nursing students at Oikos are still traumatized by the April 2 shooting and are looking for a new space off campus to hold classes. Instructors say they are not sure when classes will resume.

The Associated Press contributed to this report.

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