Ahhh, public transportation...
Both of them were kinda acting like jack-asses, and that's a good way to get shot. That ol' boy really got in on a couple of them shots. I think he may have got him with a couple knees or kicks there at the end.
Look at this clip of the old guy going crazy afterwards
http://www.youtube.com/user/iyannaw0.../1/u5fnjFVPCek
Here is the girl who took the video.
http://www.youtube.com/user/iyannaw0.../0/CbsX5j-8T3Y