For the first time, there's footage of Bruce Jenner's fatal car accident online.

Bruce's black Cadillac Escalade crashed into the back of a car, sending it into oncoming traffic where it was hit by a Hummer, killing the woman inside.  That's when Bruce then collides into a second car.

Since the video was shot from a passing bus, it really only catches the impact.  It doesn't show how it started.  So unless there's more footage than this, they will have to rely on witness testimony to determine if Bruce was at fault.