[Retain Mike]

From the article: "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 AP on condition of anonymity to discuss an ongoing investigation."

So, the police ran away?

[piasa]

Do you want to stick your head up over an wave and try to clamber up onto a roof while a guy a few feet away and slightly above you takes easy shots at your head? Or would you duck back below the wave and call for people in better positions to shoot, to take him out?

The real question is why there was no Secret Service personnel stationed on that roof.