 What could they have done? He had a pitched roof that he climbed up, was not seen until the last minute, but people on the ground saw him. So you look at communications devices, how quickly that information moved around. Almost immediately after he fired, the sharpshooter was fired at him. Retired Chief Boyce spoke to ABC. New York City is under a heat advisory until 10 p.m. Tuesday. Today's highs will be about 95 degrees with real fuel temperatures around 100.