At the police station, Detective Sunshine discovers that the bullet pulled from Paula's dog's only matches one gun in the area: Alan's. IRS agent Marvin Goldblum, using Alan's tax problems as leverage, extorts a free dental exam and a payout. Instead, Alan tortures him. Detective Sunshine and Detective Gibbs drive to the Feinstone house to question him further. Near the pool, they discover Matt's body. They quickly break into the house and find the mutilated Brooke, tied to the bed but still alive. Later, Alan's other dental assistant, Karen, finds Marvin still in the dental chair. Alan attacks her, then kills her by injecting a needle full of air into her jugular vein.