It's wrong to emulate someone who is a murderer.
Ron has been transfixed by reading about Jeffrey Dahmer so much, and is at his friend's house.
Ron wants to do something about his obsession.
Ron tells his friend about how he's been feeling, and what to do.
Ron pulls out a knife, and stabs his friend to death.
Ron's friend convinces him to see a psychiatrist and get some help.
The cops come and Ron gets arrested on the spot.