case. That could happen as soon as this fall. Take a look at what happened over. Tonight, new details on the moments leading up to the assassination attempt on former President Trump. Federal law enforcement sources tell Fox News an officer confronted the gunman and then retreated. Reporter Caroline Elliott, joining us from outside the crime scene in Butler, Pennsylvania. We're told police officers had the opportunity to stop the shooter as early as 30 minutes before federal sources tell us tips were coming in. Officers were being warned that a suspicious man was on top of this roof behind us, but nothing happened until after those shots were fired. Federal law enforcement sources also tell us a local police officer even took a photo of the suspect and flagged it to state police. Eventually, the shooter, Thomas Matthew Crooks, made it to the rooftop armed with an AR style rifle. Law enforcement sources tell us. Rally goers warned police again, according to the Butler County Sheriff. Around that same time, a local police officer lifted another officer onto the roof and that's when the shooter aimed his rifle at the officer, and the officer ducked for cover. Moments later, the shooter fired several shots toward the crowd, killing one Trump supporter, injuring two others. And as police pointed out, Donald Trump came within millimeters of taking a bullet to the head. Pennsylvania Governor Josh Shapiro says the shooting should have never happened. Pennsylvania State Police is leading the investigation into the two wounded Pennsylvanians, along with, unfortunately, Corey, whose life was taken from us as he was there advocating for his preferred candidate that should never, ever happen. In an interview with ABC news, the Secret Service director says she takes responsibility for what ha
