In the trio's attempts to solve Bunny's murder, they discovered a bloody matchbook from a nearby diner in a secret passage leading out of Mabel's apartment. The matchbook had a fingerprint on it, making it the clearest lead to catch the killer. Charles, Oliver, and Mabel texted the number they thought belonged to Detective Williams, asking her to run the print. However, things got complicated when they found out that the texter couldn't be Detective Williams, because she was on maternity leave. This meant only one thing: The mysterious texter was also the killer. The texter arranged to have the matchbook evidence left at a drop-off point, but the Only Murders trio surprised the mysterious figure with a glitter bomb instead - thus giving us the name "Glitter Guy." Glitter Guy managed to escape, but we've learned several things about him: First, that he is (or was, at one point) covered in glitter. Second, that he attacked Mabel, resulting in her stabbing him in the arm with a knitting needle. Third, that he works as a security guard at Coney Island. So now that we know who Glitter Guy is, does that mean we also know the killer's identity? Not necessarily. Kreps has definitely been an antagonistic force this season, but why would he want to kill Bunny? Why would he try to frame Charles, Oliver, and Mabel? And why would he text them to get out of the Arconia the night Bunny died? On top of all that, we've only just met Kreps this season. It's more likely that Bunny's killer would be someone we met in Season 1 who also knew Bunny and our leads. Kreps could still be involved in the murder - he is Glitter Guy, after all - but perhaps more as a sidekick to the actual killer. Think about it: Who's to say Glitter Guy and the person texting Charles, Oliver, and Mabel are definitely the same person? The texter, whose fingerprint is likely the one on the matchbook, could have called Kreps in for damage control. However, the way in which Kreps is linked to the killer is still unknown.
