 From ABC, after conducting more than 100 interviews, searching the suspect's home and vehicle and cracking into a cell phone, FBI investigators were still searching on Tuesday for the motive that led a 20-year-old Pennsylvania man to attempt to assassinate a former president. As fallout continued on the security failure that led to the attempt on former President Donald Trump's life, the Pennsylvania State Police said Tuesday afternoon it was not responsible for securing the area where the gunman opened fire from a rooftop about 400 feet from the rally stage hitting Trump's right ear.