Times Square NYC - NYPD kills man with huge knife

An emotionally distrubed man pulls a huge knife on an NYPD officer and a chase ensues down 7th Avenue starting at 44th Street with NYPD officers at gunpoint. I would have followed further, but I had basically abandoned my family and some visiting friends to get this video. Police later shot the suspect dead at 37th street after he lunged at an officer. I was standing ten feet from this guy when he started ranting some crazy dialogue in the middle of 44th Street between Broadway and 7th Avenue. A female NYPD officer told him it was fine to speak, but to do it on the sidewalk. A minute later this chase began. I just remember the knife being HUGE.