The last thing City needs is a mayor who thinks cops can do no wrong. But the next to last thing New Yorkers need are cops ...

(CNN) — During evening rush hour in New York City on Monday, a man calmly walked into a Park Avenue office building lobby and killed a police officer, then opened fire on other innocent strangers.

Short clips captured hanging lamps swaying, ceiling fixtures shifting, and startled pets reacting to the sudden movement ...