Yeah, sorry. I accidentally uploaded the truncated video clip. Here in the longer one, you can see on the CCTV that a pair of bikes rounds the corner moving very quickly (0:12) and about ten seconds later (0:22), the bike she is on also rounds the corner and she falls off.
The shooter(s) were on those two other bikes and the actual shooting took place off camera. But it took her a few seconds to fall off of the bike after the initial shots.
aaaah thought i was braindead for a second.

thanks for uploading the longer video!