'He had to do this carefully and it had to be when he had pockets of opportunity that allowed him to pretend he was doing something else, like library research for a course he was taking or being out of town or going overnight on a Boy Scouts camping trip,' said Ramsland. Not only did he have a job (he was employed by ADT Security Services to fit security alarms), he also had a wife and a child. Katherine Ramsland, a forensic psychology professor at DeSales University, who wrote Confession of a Serial Killer: The Untold Story of Dennis Rader, the BTK Killer, explained to Oxygen that Rader had commitments which prevented him from going on sprees similar to that of Ted Bundy or Rodney Alcala.
Most of them really, really escalate and often times, that is what leads to their undoing.' Most serial killers don't have these lengthy, extensive periods between their killings. Scott Bonn, PhD, a criminologist who spoke with Rader himself and also wrote the book Why We Love Serial Killers: The Curious Appeal of the World's Most Savage Murders, told Oxygen: 'His pattern is very a-typical. But it wasn't until 1985 when he strangled Marine Hedge, followed by Vicki Wegerle in 1986, and then Davis in 1991. Following the Otero murders and that of Kathryn Bright in 1974, there were Vian and Fox in 1977. You might be surprised to learn that across a period that spanned more than 17 years, Rader killed only 10 people.
