A couple of interesting pictures... I mean, I think they are interesting
If you look close you can see what looks like a hole through the body of the receptacle. The wire no longer comes out the normal path.
It is unclear if the hole goes through. I do not wish to change "the evidence" to find out if it does. I may give the fire dept. a call to see if they can take a look. Why not.. I am a curious guy...
Here is the other side of "what appears to be" a hole.