who was the killer in scream 2 movie
Scream 2 Sidney goes back to the campus and finds Derek in the auditorium tied to a crucifix, his mouth gagged with duct tape. Once Sidney unties him, she is confronted by Ghostface, who reveals himself as Mickey and kills Derek. Mickey details his plan to become famous in the ensuing trial and media spectacle. He then announces his real partner, Debbie Salt, who arrives holding Gale at gunpoint. Sidney discovers that Debbie Salt is actually Billy Loomis' mother, seeking revenge for her son's death. Mickey explains that they met online and that Mrs. Loomis agreed to pay for Mickey's tuition fee while Mickey does the actual killing. Mrs. Loomis betrays Mickey and shoots him, as she plans to blame the murders on Mickey. Before he collapses, Mickey accidentally shoots Gale, causing her to fall off the stage.