Task: Question Generation
Input (English): Passage: In 2004, Broadway diva Kylie Swanson opened the musical The Haunting of the Opera (a reference to real-life musical The Phantom of the Opera) to a packed audience. However, that same night, she was murdered backstage by an unknown assailant wearing the mask of the play's villain, Opera Ghost. 10 years later in the present-day, Kylie's children Camilla and Buddy have grown up raised by Roger McCall, a former lover of Kylie's and the producer of a musical theater summer camp on the brink of bankruptcy. When Camilla hears that the camp will be producing a kabuki version of The Haunting of the Opera, she decides that she will sneak into auditions one way or another. She manages to convince a camper overseeing the auditions, Joel Hopton, to let her in and Camilla easily impresses the stage director Artie and wins the lead role of Sofia - much to Buddy's dismay.
As the opening day grows closer and closer, Camilla discovers that Artie will only let her perform on opening day as long as she provides him with sexual favors. He emotionally blackmails her by playing her off of Liz Silver, a camper that will do anything to perform on opening night. Camilla tries to ward off Artie's attentions by only making out with him, which disgusts Joel - whom Camilla has largely ignored since the audition. The night before the performance, Artie gives Camilla an ultimatum: either she sleeps with him or he gives the opening night performance to Liz. Camilla initially acquiesces to Artie's overtures, but decides at the last minute that she can't go through with it. After she leaves, Artie is brutally murdered by someone wearing the Opera Ghost mask, but Roger tells everyone that Artie died by car accident. Unwilling to potentially lose a visit from important Broadway agent Victor Brady, who is only willing to watch the performance if Camilla is performing, Roger manages to persuade everyone to perform opening night as planned.
Output (English): What is the first name of the person that leaves just before Artie is killed?