Criminal Minds: Season 4, Episode 18

4 - 18: Omnivore

The BAU travels to Boston when the Boston Reaper, one of Agent Hotchner's first cases, which involved one of the most notorious murderers in the history of New England, returns after 10 years. The team interviews the only victim that survived, George Foyet, to find clues about the killer. Loosely inspired by the Zodiac.