The episode where Tony kills Salvatore “Big Pussy” Bonpensiero is “Funhouse.” It is the second-season finale and the 26th episode of The Sopranos, first broadcast on April 9, 2000.
Tony begins to suspect that Pussy is secretly cooperating with the FBI after experiencing fever dreams in which a talking fish reveals Pussy’s betrayal. Tony searches Pussy’s bedroom and finds evidence of his informant work, including a wire. He then lures Pussy onto a boat with Silvio Dante and Paulie Gualtieri.
On the boat, Tony confronts Pussy, who eventually admits that he has given information to federal agents. The three men shoot him, wrap his body, weigh it down, and throw it into the ocean. A common mix-up is confusing this scene with earlier episodes involving attempted hits or FBI investigations; “Funhouse” is the episode in which Pussy’s death actually occurs. Its title refers to Tony’s dream and the Asbury Park funhouse.