A Massachusetts man who had small roles in major Hollywood movies was fatally shot early Monday by police officers who had responded to a fatal stabbing, authorities said. Paul Campbell, 49, was agitated and armed with at least one knife when police arrived to the Weymouth home he shared with his mother, who was dead of multiple stab wounds, NBC affiliate WHDH reported. The two officers who responded to a 911 call from the home made simultaneous decisions to shoot Campbell, and both struck him, officials said. He was taken to South Shore Hospital, where he was pronounced dead.

Campbell's mother, 72-year-old Patricia Campbell, was found fatally stabbed at the front of the house, police said. The district attorney is investigating the police shooting, and wouldn't say whether Paul Campbell lunged at officers or whether their actions were justified, WHDH reported. Campbell was childhood friends with Boston native Mark Wahlberg, who scored him the part of a toothless crack addict in 2010's "The Fighter," neighbors told the station. Campbell also had bit parts in the 2012 Wahlberg comedy "Ted" and the 2013 hit "American Hustle," according to multiple reports.

He has a daughter with the current girlfriend of Boston Mayor Marty Walsh. "This is an ongoing investigation and it is not my place to speculate on why or how this happened," Walsh said in a statement, according to WHDH.

SOCIAL

RIP Paul Campbell, you were so great to us you will be missed pic.twitter.com/AF8dSf3iHx — Kelly Toomey (@toomeykel) January 20, 2015

House where Patricia and Paul Campbell were killed.#weymouth pic.twitter.com/3SsB0osCIW — Karen Twomey (@KarenWBZradio) January 19, 2015

— Erik Ortiz