Jared Remy, the son of Red Sox broadcaster Jerry Remy, has been charged with assaulting another inmate at Middlesex County Jail, where he is awaiting a murder trial for allegedly killing his girlfriend.

On Thursday, Remy, 35, was charged with assault and battery against a fellow pretrial detainee with a dangerous weapon at the Cambridge jail, reports ABC affliate News Center 5. His arraignment on the new charge is set for April 24 in Cambridge District Court. He has since been moved to an isolated area of the jail.

In October, he will begin his murder trial for allegedly fatally stabbing Jennifer Martel, the mother of his 5-year-old daughter, at their Waltham apartment on Aug. 15, 2013.

His father, Jerry Remy, the former Red Sox player, admitted his failure in raising his son, who has a long history of domestic violence and behavior issues.

"I don't know if I'd do things differently. I really don't," Remy told WEEI radio last week. "We did the best we possibly could. We failed, we failed. It's that plain and simple."

According to prosecutors, Remy attacked Martel in their kitchen, living room and on a stairway before pinning her to the ground of the patio. He then stabbed her repeatedly, while several neighbors watched in horror.

At least one neighbor in the Windsor Village apartment complex tried to stop Remy, but he was driven back when Remy began trying to strike him with the knife, said Assistant Middlesex District Attorney Lisa McGovern.

"Great force and great effort was made by this defendant in stabbing Ms. Martel over and over and over again,'' McGovern said, according to the Boston Globe.