 A long time. 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've learned from our sources the person in that picture is Thomas Crooks. We're told it is not clear if Crooks had a gun with him at that point.