Body cam is not the same line of sight as his eyes.The body cam refutes that defense, IMHO. He could have seen it because he is a lefty, and he moved his right arm out of the way, giving his body cam, and obviously his own head, a clear line of sight to the gun. I'm not going to bother talking about what crime he arguably committed because there must be like a 99% chance that they'll decide it was reasonable in the moment, not because it actually was, rather because the bar for deciding otherwise is so high.