Twin Peaks

Cooper is also visited by an apparition of a mysterious Giant, who provides him with further clues in the murder investigation. All of the information that Cooper has gained from psychic and empirical means, including the mysterious utterances of an eccentric local woman known as The Log Lady, leads him to a number of suspects; but when he discovers the existence of Laura's second, secret diary, he realizes that therein lies the key to solving the mystery. Harold Smith, a local man who was one of Laura's confidants, holds this diary. The secret diary reveals that from a very early age Laura was abused by a figure called "Bob", and that her use of drugs and sex are the means she has used to numb herself and escape from him.

On the night before she is to leave town, Maddy is brutally murdered by Laura's father, Leland, who is revealed as the man who is possessed by BOB. Cooper and Truman apprehend him, and as they interrogate the crazed Leland, it becomes clear that Leland has little to no memory of his grotesque actions while under BOB's influence. After confessing to two murders, BOB forces Leland to smash his own head against the wall of his cell. As Cooper and Truman rush to his side, Leland's memories of what he has done return to him, and in his dying moment, Leland claims to see Laura. However, as Cooper and the others note, if BOB has truly left Leland's body, it means his spirit is now loose in the woods of Twin Peaks. This is the end of the second season.

At the begining of Season 3, with the murder investigation concluded, Cooper is then all set to leave Twin Peaks when he is framed for drug trafficking by the criminal Jean Renault, and is temporarily suspended from the FBI. Renault holds Cooper responsible for the death of his brother Jacques, who was murdered by a grieving Leland Palmer when Jacques was under suspicion for Laura's murder.