Was He Supposed to Stand There and Get Shot Too?

A cop was caught on video taking cover after his partner was shot, not returning until after returning fire with the fleeing vehicle. The way the article is written, the cops partner is hit multiple times in the chest and falls. The cop flees behind parked cars and returns fire with the assailant.

WHat? His partner is down. Was he supposed to lay his body over the prone victim and return fire? I am not sure what police protocal is during a situation like that.

Am I wrong?