Here is a more complete version. Think its video from the same flight, just different angles. Worth watching....

http://www.youtube.com/watch?v=nw0gjw1XIIk&feature=share

At 0:30 it looks like an animal starts walking away from the wall behind the bike. It also looks sort of like a bag rolling across the road, but if you watch at the time of the crash something falls out of the air and lands right where this thing comes from. 2 people and a pet on the bike?