BBM
In response to the bold... now this would definitely mean she had her arms folded around her head. See my post above and it makes perfect sense.
Enters the right arm above elbow, goes thru to the head at the base of the skull, exits the left side out thru the left arm.
There's no reason to be shielding your head in the bathroom like that on a simple pee trip (unless you're raging hungover.. which she was not)
But wouldn't there be evidence of all of that, the bullet entering and leaving, etc.? Wouldn't they be able to tell the path of the bullet(s)?