NBC's New York local affiliate WNBC aired exclusive home video of the tragic collision between a small airplane and a tourist helicopter during their newscast tonight. The video, shot by a tourist aboard a boat on the Hudson, captures the moments before and the stunning impact when the small plane collided with a sightseeing helicopter shortly after noon this past Saturday. Tragically, the footage appears to have been recorded by friends of the Italian nationals who were on the helicopter, and perished as a result of the crash. WNBC anchor Chuck Scarborough says that the video "may play a key role in the NTSB's investigation of the tragedy that claimed nine lives last Saturday." Warning: the video is shocking and may be upsetting to watch.