Being a serial killer, they say, is a chemical imbalance in your brain. You are wired to be messed up. It's not how you are raised or that you choose that lifestyle, it's because you were born that way. How? They still aren't sure. It's a theory. Well, to be a serial killer is not only sickening but the way some of them go about it is absolutely crazy. Check out these top 20 serial killers of all time.
Richard Ramirez was a rapist, burglar and serial killer. Known as the "night stalker" he went on a home invasion crime spree terrorizing residents in LA in 1984 and 1985. While waiting his execution, he died from B-Cell Lymphoma.