Does mostly legs and arms make it seem like he may have been crouching? Any clue as to the trajectory of the bullets through the body?
Maybe. Or maybe symptomatic of mostly undirected fire. Imagine a shotgun blast 10 feet in diameter where every pellet is a .223 Rem. Be interesting to learn if the wounds were predominantly on one side of the body far more than the other (i.e. the shotgun blast wasn't well centered on Guerena).