DD calls are some of, if not the most dangerous type of call.  The big question is "was he reaching for a gun"?  In general, LE protocol mandates you shoot until the threat is neutralized.  If the bodycam video shows him reaching under the seat, then there's the answer. Otherwise, 7 rounds to the back seems a bit extreme.  I'm amazed the dude survived, from what I hear. Last point - we need audio.  If he is saying "imma get a gun and shoot y'all", well, then there is more justification.