YMMV / Criminal Minds S 4 E 18 Omnivore

• Complete Monster: The Boston Reaper, George Foyet, returns after retiring from a killing spree for which he was never caught, following the death of the original investigator. Killing again, the Reaper calls investigator Aaron "Hotch" Hotchner, agreeing to stop his killings with the addendum that Hotch must abandon the Reaper's case. His deal rejected, the Reaper massacres a bus full of people and kidnaps and threatens a journalist before being arrested by Hotch. Boasting that he kills for fame, the Reaper escapes from prison, stalking Hotch to his house and torturing him into a coma. Dropping Hotch off at a hospital, the Reaper leaves notes indicating he intends to target Hotch's ex-wife Haley and young son, Jack, next, mutilating then killing the officer assigned to protect them. Murdering Haley, the Reaper calls Hotch to torment the powerless man over the phone as he closes in to kill Jack.
• Evil Is Cool: Foyet is an utter monster, no question. But his extreme level of competence and Howell's strong performance make him a great villain.
• Moral Event Horizon: The Reaper clearly crossed this in his original killings, but the bus massacre is perhaps the moment where it becomes obvious just how evil he is.