The book states that "the stimulus response theory of human behavior, [is] when an individual's behavior results in rewards or comments that the individual considers pleasant and desirable, then this behavior will likely become more frequent. (Schmalleger, 2016) Lewis was not only a murderer, but also a rapist who enjoyed dominating, raping, raping, and terrorizing prostitutes. The second woman he attacked is very similar to the first, showing that he had a guy who fostered this behavior in him. Lewis had sexual fun with these rapists of women and, in turn, this made his attacks more frequent or frequent.