An all-new teaser for Fox's upcoming second season of "Gotham" highlights the kill-happy psychopath Jerome, who the show continues to tease as a potential future Joker.

Still unconfirmed whether or not Jerome eventually becomes infamous DC Universe villain and Batman archenemy the Joker, the less-than-30-seconds teaser does little to dissuade those firmly in the Jerome-Joker camp and does more to convince those outside to come on in, with multiple images of him smiling wildly and maniacally and moving around with over-the-top frantic mannerisms identical to that of the Clown Prince of Crime.

See for yourself below and pass full judgement when "Gotham" returns Monday, September 21, at 8 p.m. on Fox.