2 Shooter Theory

I've often wondered if Matt had a gun that was given to him in a 'not quite legal' way, whether because he was concerned with some situation or just for an extra bit of peace of mind. It's entirely possible and would definitely shine a different light on the struggle.

Still, take a look at the autopsy and note the locations of the wounds and the directions from which they came, as well as the severity of them. It's hard to speculate using only that document as to the order of the wounds, but there are definitely a few things in there that suggest multiple attackers as a possibility based on angles and distances.

I'd still very much like a specialist to evaluate the autopsy and wound list to see what they come away with. Truth is, we don't have enough information on the crime scene itself to do anything other than speculate as to possibilities, but your idea is definitely a valid one.