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5. "Regardless of the motive, serial murderers commit their crimes because they want to. The exception to this would be those few killers suffering from a severe mental illness."
6. "Very few serial murderers travel interstate to kill. Most serial killers have very defined geographic areas of operation. However, serial murderers will, at times, spiral their activities outside of their comfort zone, when their confidence has grown through experience or to avoid detection."
7. "It has been widely believed that once serial killers start killing, they cannot stop. There are, however, some serial killers who stop murdering altogether before being caught."
8. "As a group, serial killers suffer from a variety of personality disorders, including psychopathy, anti-social personality, and others. Most, however, are not adjudicated as insane under the law."
9. "It is not that serial killers want to get caught; they feel that they can't get caught. As serial killers continue to offend without being captured, they can become empowered, feeling they will never be identified. As the series continues, the killers may begin to take shortcuts when committing their crimes. This often causes the killers to take more chances, leading to identification by law enforcement."