I see it different:
1). Nissan crossed a double yellow hump to illegally enter the HOV lane, without looking or caring.
2). There was a motorcycle already there. It
was his lane.
3). Nissan did not even slow down and yield, but intentionally kept merging into him and got kicked.
4). Nissan then attempted murder and ended up smashing several other cars with victims in the process.
5). Nissan driver should go to jail for a long time.