John Wayne Gacy A serial killer is an individual who murders at least four persons in a reasonable amount of time. A serial killer continues to kill until they are either dead or captured. However, serial killers are proned to have "cooling off" periods in which they take a short break from killing innocent victims. Among most murder cases, someone they know, whether the murderer is a family member, a friend, an acquaintance, or a …showed first 75 words of 1654 total…

…showed last 75 words of 1654 total…killed 32 young men by himself. He was charged with the principle of the first degree because of his actions. Killing was a basic necessity of his life. Killing was needed for him to exist like food, shelter, and water is needed for humans. Serial killers motives aren't obvious. They don't kill for fame or a reaction. Serial killers kill for internal motives. Because of these internal motives, psychologists find serial killers to be a mystery.