This doesn't make any sense. Obviously this person was a trained killer. I think the whole rifle in the woods thing is a prop. It's kind of like the passport they found untouched after nine eleven. I believe it's a distraction to make us think along the line they wanted, or to make us look in the wrong place. A kind of smoke and mirrors or a slight of hand.
It's almost like somebody's making war against us, by deception.
I actually tried to put my rifle down the back of my pants leg and there's no possible way that could happen. Somebody set the rifle there ahead of time. It has to have been that way.
Bolt action? No magazine? In any case, it's a definite "no" when climbing off a building and running with a rifle down your pants.