Down the Rabbit Hole

Thomas Wilder's latest score of dead women brings Danny to Nassau County, where he teams up with FBI behavioral specialist Adam Parker. Parker thinks he is only encouraging the killer and should instead capitalize on Wilder's obsession with him. When Danny publicly mocks him for killing his mother, Wilder retaliates by kidnapping Nicky in revenge. TARU traces Nicky's cell phone to a remote area, where he and Erin manage to find her. Danny follows Wilder to an open field, where the murderer taunts him and says that no matter if he shoots him in self-defense or murder, he will always be in Danny's head. After everything he's been through, Danny still proceeds to shoot him. Frank finds it irritating having to mediate with the FBI agent in charge of the Wilder investigation, who cares only about getting and not going through protocol. Several Irish delegates come to town to award Frank, but one of them seeks Erin's help in uncovering the truth about his father's suspicious death. She instead learns his father is in fact alive, was a former gangster, and is now spending his life in Sing Sing. Breaking the news, she is able to connect the delegate with his dad. Meanwhile, after stopping a slasher, Jamie runs into a rookie cop who happens to be Nicky's new boyfriend, and proceeds to spill the beans to the rest of the family.