out, behind us here there is this memorial. it continues to grow. new yorkers here are still in shock and mourning. many felt they had to come here in person just to see this site for themselves. alerts have gone out nationwide. but many are also struck not just by the violence but the question, could it happen somewhere else and they're reminded how divided the leadership is. moments after murder. this video shot from a brooklyn balcony looks down on a street, capturing the frantic efforts saturday afternoon to save the live of two new york police officers shot as they sat in their patrol car. one is in an ambulance. another wheeled across a stunned and shut down street. less than a block away at a subway station, suspected