Also from the comments he was Mormon and had done his mission which generally means riding around a lot on a bike because
they can't drive while on their mission. We can't know that for sure what his experience level was, as you said, but he probably wasn't a total newbie.
Based on the comments of witness and what I saw of the car and scene, I feel that he outright ran the red light because he was distracted or miscalculated when running a yellow. He was hit at speed, but my comment about high speed is probably misleading. It has hard enough to throw him into the air so that he landed on the roof of the car. I'm not sure at what speed that would happen.
What a tragic accident.
