The Lizard King speaks up:
DON'T WATCH IF YOU'RE SQUEAMISH! Check out this video if you're interested in the forensics of Charlie's shooting. I'm hiding the link image on purpose. A guy from Paramount Tactical points out that Charlie was wearing thin body armor under his t-shirt. I had no idea that body armor could be so thin. The round clipped the top of plate and fragmented. That explains the wound characteristics. Although it's not as gruesome as the actual video, it's pretty bad.