The next day, Dr. Jennings meets with Kendall at the station in hopes that he can help provide a profile of the murderer. Bracken brings in an undercover cop named Mary Riggs, who was also a former tennis player. Bracken explains to Holden that she will pose as a tennis instructor at the college and that Kendall is going to assist her whenever he can. As a reporter named Sylvia Costa is stonewalled by Bracken, the killer stalks a girl later that evening and saws her arms off inside an elevator just before Kendall and the police arrive. That same evening, the killer also stalks Sylvia and stabs her on a waterbed.