The Fat Guy Strangler [SEP] series
The Fat Guy Strangler
"The Fat Guy Strangler" is the 17th episode of the fourth season of the American animated television series "Family Guy". It originally aired on the Fox network in the United States on November 27, 2005. In the episode, Lois discovers she has a long-lost brother, Patrick, who was institutionalized after seeing his mother being seduced. Lois gets him released, but after a childhood flashback induced by Peter, Patrick becomes traumatized and starts murdering overweight people. 
The episode was
to be nothing wrong with him they decided to check him out and take him in. Later it is discovered that he has an imaginary wife named Marian and, more importantly, that he had a hatred of overweight people due to a bad experience from his childhood (witnessing comedian Jackie Gleason having a sexual encounter with his mother). At the same time, there is a rash of killings in the neighborhood of fat men, and Patrick is strongly suggested to be this "Fat Guy Strangler". After denying it,