Ankles, knees or anyplace you can make a hit. One witness said the shots were deliberate and no “spraying” of bullets(yeah, I know). Pretty sure you don’t buy a weapon six days prior and suddenly proficient enough for this without some range time. Yes, no? Too much x-box time?
I haven’t heard if he had an optic installed. That would be in keeping with the “patrol rifle” description. Heard he had a rifle and a semi-auto pistol. I would assume that he’s no stranger to shooting. I haven’t heard if he was finishing people off after shooting them, or killing them at range.