Speeding, human driver also responsible

You're not likely to get the footage, AZ usually does not release that kind of information in fatality wreaks. If they were to release anything all you would see is vehicle crossing the bridge up to the point where she is visible in the median.

I'm not convinced about the would have hit her anyway defense. The vehicle has damage to the front bumper, but not enough to jettison the bike into the sidewalk. Remember this is a three lane road with two turn lanes - that is a long distance. Also very well lit. It will be interesting to see.