 Thanks, Natalie. According to officials, Thomas Matthew Crooks purchased rounds from a gun and ammunition shop in Bethel Park, Pennsylvania. Crooks alleged fired as many as eight rounds from a rooftop 200 to 300 yards away. According to the FBI, there was a suspicious device found in the suspect's car and agents were trying to determine what it is. Another was found in his home. Crooks had no known history of mental illness. His family is cooperating with investigators.