 It's time to cool it down. New details emerging this morning as well about law enforcement's response at the time of the shooting. Here's ABC's Andrew Dimbert. The Butler County Sheriff says local authorities spotted the shooter on top of a building and an officer was vaulted up to the roof where the shooter was perched. But the suspect quickly turned and aimed his gun at that local officer, forcing him to retreat and fall down. But ABC News chief congressional correspondent Martha Raddatz says there are still a lot of questions about the overall response.