 and for this Commonwealth, and I know for this country. He called the shooting unacceptable and identified the one person killed as 50-year-old Corey Comperatore, saying he died as a hero protecting his family. The investigation into the 20-year-old suspect, who was killed by the Secret Service, continues. Two sources tell ABC there were devices that appeared to be explosives in his car. Five of Thomas Crooks' former classmates described him to ABC News as a student who was quiet.