Irenic, if I look at the video, it appears the belt buckle is centered where it should be. There is one segment where you can see the glint of the buckle (around 50 sec.). In the picture you show, the belt is unbuckled. Then in the one where he is flung over someone’s shoulder, it appears his pants are down, or not on.
In all of the pictures, I would guess he is already dead. It appears rigor mortis has set in to the eyelids, the bent arm. In the video, his arm and body is motionless on the ground. He is either dead or knocked out, IMO.