 Well, the shooter who attempted to assassinate former President Trump at a rally in western Pennsylvania Saturday was reportedly spotted by law enforcement almost a half hour before the shots were fired. That's according to WPXI Channel 11 News in Pittsburgh, which cited multiple law enforcement sources. The outlet says a source confirmed one of Beaver County's team of snipers and spotters saw a suspicious man on the roof at about 5.45 p.m. local time, took a picture and called it in.