2 killed, 3 critically injured in NYC helicopter crash

NEW YORK — A helicopter crashed into New York City's East River Sunday night and flipped upside down in the water, killing two of the six people aboard and leaving three others in critical condition, officials said.Video taken by a bystander and posted on Twitter shows the red helicopter land hard in the water and then capsize, its rotors slapping at the water.Authorities provided an update Sunday night after a helicopter crashed into NYC's East River:The helicopter, a private charter hire