One person was killed and four others injured when a gunman opened fire inside a crowded Texas church on Sunday morning. The gunman was shot to death by two armed parishioners. Officials say the shooting occurred at 10:57 a.m. at the West Freeway Church of Christ in the Fort Worth suburb of White Settlement and was captured on the church’s livestream of the service. Witnesses told reporters that the gunman was wearing a fake beard and sunglasses and had taken communion before launching the attack.

The shooter, whose name was not immediately released, was pronounced dead at the scene. Two other people suffered minor injuries attempting to flee the church. The FBI is assisting in the investigation, according to Matthew Desarno, special agent in charge of FBI’s Dallas field office. “We are working very hard to find a motive, to get to the bottom of what happened,” Desarno said.

2 killed, including suspect, after gunfire at Texas church during Sunday service