Not long before shots rang out, rallygoers noticed a man climbing to the roof of a nearby building and warned local police, according to two law enforcement officials.

One local police officer climbed to the roof and encountered Crooks, who pointed his rifle at the officer. The officer retreated down the ladder, and Crooks quickly took a shot toward Trump, and that’s when Secret Service snipers shot him, said the officials, who spoke to The Associated Press on condition of anonymity to discuss an ongoing investigation.

(full story below, I just used two paragraphs)