A few other factors:
1. He never said a word. Never shouted "Police!" or "Halt!" or "Yer mama has a fat ass!" or "Free tacos!" Because shouting to distract a wrongdoer (and to establish your police authority) apparently isn't policy.
2. He pulled up to level his weapon and fire. If he'd just kept going, he woulda hit Lopez faster'n it took him to fire.
3. He had three other cops less than a second behind him. I guess LA cops can't win a hand-to-hand with only a 4-1 advantage.
4. All three of the other cops he pushed, pulled, and shoved past were armed with Tasers, batons, OC spray, and pistols (as was Rambo), the latter of which fire bullets far less likely to penetrate walls.
But the bootlickers say we can't know, therefore we can't question. Well, if we can't question, why bother to have policy and investigations in the first place? The cops should just shoot anybody they see. Cuz ya never know. . .