I'm writing a more so dark story and I'm new to this so I'm putting together an outline and trying to define these people before I start. But I'm stuck I need 4 characters. Each of them are serial killers and their model profile for suspects will match one of the other 3's. So.. I would have 4 people all of which fit the profile of another person. Am I making sense and can you please help me get the ball rolling?