<P> 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 . </P>
<P> 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 . </P>
who was the killer in scream 2 movie
who was the killer in scream 2 movie
Mickey Debbie Salt
Mickey Debbie Salt