Your wish = my command. (Squeamish, hide your eyes... oops, too late!
I am no medical examiner but I’d say teeth missing, no other holes in the front, suicide with a firearm held in the mouth. I did stay at a Holiday Inn once.
By the looks of the teeth the sniper has been on the job for a while.
What is the purpose of the yellow circle in your pic?
There is a wider shot of that photo that shows the black powder burst mark on the roof, to the right of his head.
While we’re finding stuff, I’m trying to find the video of the SS sniper taking out Crooks. There’s a bunch of them but I don’t remember seeing the one people here said the guy’s rifle recoil sent it pointing skyward.