The local police (Swat Team) saw and took a picture of the shooter on the roof 30 minutes before the kid shot Trump. The police called it into to the Secret Service. Nobody did anything.
The local cops were using the building as a staging point.
Channel 11′s Nicole Ford confirmed that Beaver County’s ESU team had eight members at the rally, including snipers and spotters. According to Ford’s sources, one of them noticed a suspicious man on a roof near the rally at 5:45 p.m., called it in and took a picture of the person. We have learned from our sources the person in that picture is Thomas Crooks. We’re told it’s not clear if Crooks had a gun with him at that point.
According to multiple sources, a law enforcement officer had also previously seen Crooks on the ground and called him in as a suspicious person with a picture prior to 5:45 p.m. Our sources tell us an officer checked the grounds for Crooks at that point, but did not see him where the first picture was taken.
26 minutes after the second picture of Crooks was taken by law enforcement and the information called in, shots were fired from the roof of the American Glass Research building. Seconds later, a Secret Service sniper returned fire and killed Crooks.
http://www.msn.com/en-us/news/crime/alleged-trump-shooter-spotted-by-law-enforcement-nearly-30-minutes-before-shots-fired-sources-say/ar-BB1q1YBd