Rule 34
Someone is dismembering and killing men and shipping the parts to seemingly random people as well as posting videos of the dismemberment using a chainsaw on a fetish site. The team theorizes that the UnSub must be doing someone's bidding, and it turns out he has a crush on a dominatrix with an Internet presence and goes after her ex-husband.
Provides examples of:
- Bad People Abuse Animals: Rask has a fetish for crushing small animals.
- Body Horror: The UnSub cuts his victims into pieces while they're still alive.
- Call-Back: Matt and Kristy's son is acting out and Kristy figures it's because she acts more protective after she was in a hostage situation.
- Leaning on the Fourth Wall: What really bothers Matt's son David is that a kid at his school pointed out that on TV shows cops wear bulletproof vests but no head protection, so why don't the bad guys just shoot them in the head? It makes him worry about his dad.
- Title Drop: The Dominatrix the interrogate explains Rule 34 to Rossi.
