The “bath salts” mentioned as a drug were marketed before being made illegal in some states. As for the face eater, here’s another story about that from the UK.
http://www.freerepublic.com/focus/f-news/2889053/posts
But drugs for sure. Here’s a link to another case.
Hackensack man stabs self, accused of throwing intestines at police
http://www.freerepublic.com/focus/chat/2889164/posts