Clearly, the shooter would have been covered in blood and brain splatter and hit by pellets and maybe even bone - all at high velocity.
AM would know about back splatter.
I've been on MANY hunting trips in four countries and have never seen or even heard of a hunter using 7 shots for 2 kills. One shot, one kill - even on flying birds and running game. IMHO, these were not experienced shooters. It is obvious that the rifle shooter was aiming AT MM - not shooting wildly at her - and the kill zone is the chest, yet he/she hit her in the thigh? With an alleged scoped Blackout?
Not buying it.
I do not believe that there was enough time for AM to shoot them both, drive 3 football fields back to the house without leaving any evidence in whatever vehicle he used, bag up his bloody clothes and 2 long guns, shower himself well enough that he left no blood or brain matter anywhere in the house, including the shower, and was driving out of the drive by what 9"04? 06?
I do not believe he washed off at the kennel with the hose, there was no evidence of that at the scene.