Firefighter Corey Comperatore was killed during the attempted assassination of former President Donald Trump, Pennsylvania Gov. Josh Shapiro said Sunday.

Comperatore was one of the thousands of people who attended the rally in Butler, Pennsylvania, part of Trump’s 2024 reelection effort. He died trying to protect his family, according to the governor. Pennsylvania State Police confirmed his identity on Sunday.

Authorities have identified the gunman in Saturday’s attack as 20-year-old Thomas Matthew Crooks, who was killed by Secret Service agents at the scene after the shooting. The FBI is investigating the attack as an assassination attempt, the agency said.

“I just spoke to Corey’s wife and Corey’s two daughters,” Shapiro said Sunday.