Lauren LeFranc, showrunner of The Penguin, recently opened up about the show’s ending in an interview. LeFranc discussed key twists in the season finale, explaining Oz’s decision regarding his protégé,

The Penguin leaves no doubt that Oz is a monster, especially when he murders Vic in cold blood – and he sealed his fate with one line.

Note: This story contains spoilers from "The Penguin" Episode 8. Oz Cobb is finally The Penguin. The finale of HBO's "The Penguin" saw Oz (Colin Farrell) transform into the monster that's always been inside him.