He only stops with the exertion of external forces, that is he either dies or is in custody. This rape clearly demonstrated the same modus operandi used by the Scarborough Rapist as described elsewhere in this document. This pattern is predictable in the case of the sexual sadist. Once he moved to St. Catharines, he had a home of his own over which he was able to exert complete control. This change in his circumstances, aids him in the escalation of his offenses to the point where he can now bring his victims home.
Abduction is a predictable progression for the sexual sadist.
However, abduction of a victim virtually guarantees that murder will result. If the sexual sadist has held a victim he feels in his own mind that he can't possibly let them go. As his fantasy escalates he needs more control and gains that control through abduction and forcible confinement of his victims. The ultimate fantasy of a sexual sadist is to totally possess his victims, both physically and psychologically. He seeks to achieve control over their life and ultimately over their death as well.