Though pictures does of course not tell a whole story, they may sometimes provide very accurate suggestions as to what took place. From the pictures you're about to see here, I think it's safe to deduce that a) the EVA was on the centre-line and that b) the AA had not cleared the taxiway demarcation line, at the time of impact.
Whether a torn off arm belonging to a now-former FO should be used to flog the PIC to death can be debated, but there does seem to be evidence to suggest they collectively failed to maintain separation.
I know nothing of how LAX operates, but it would be interesting to learn what radio communications between ground/ramp and the two aircraft took place.
