Who is the killer on slasher?

In the context of the "Slasher" series, each season features a different storyline and set of characters, with a unique killer for each narrative arc. For instance, in the first season, the killer is revealed to be a character named "The Executioner." The identity of the killer varies from season to season, making each one a distinct mystery to solve. If you're referring to a specific season, please clarify for more detailed information!