Serial killer example of a power/control-oriented serial killer. He traveled around the United States seeking women to control. Many serial killers claim that a violent culture influenced them to commit murders. During his final interview, Ted Bundy stated that hardcore pornography was responsible for his actions. Others idolise figures for their deeds or perceived vigilante justice, such as Peter Kürten, who idolized Jack the Ripper, or John Wayne Gacy and Ed Kemper, who both idolized the actor John Wayne. Many movies, books, and documentaries have been written about serial killers, detailing the lives and crimes that have been committed. The movie, "Bundy",
Serial killer Investigation (FBI) published a handbook titled "Serial Murder" which was the product of a symposium held in 2005 to bring together the many issues surrounding serial murder, including its investigation. According to the FBI, identifying one, or multiple, murders as being the work of a serial killer is the first challenge an investigation faces, especially if the victim(s) come from a marginalized or high risk population and is normally linked through forensic or behavioral evidence (FBI 2008). Should the cases cross multiple jurisdictions, the law enforcement system in the United States is fragmented and thus not configured to detect multiple