I suspect this could be Brazil again. According to the info I got, the victim was shot to death by drug traffickers.
The video starts with the victim already seemingly dead, or close to it. There are two gunshot wounds visible in his throat. To add insult to his death, the traffickers pulled own his pants and exposed his penis.
The shooting took place in some kind of field next to a road and railway tracks. After unloading ammo into the corpse, the killers take off and leave him there to rot.