The Killer Speaks S01E04 - Twisted Love: Dena Riley

In 2006, when 38-year-old Dena Riley met convicted rapist Richard Davis, their relationship turned out to be a marriage made in hell. They shared the same twisted desire for three-way sex--followed by murder. Riley reveals how they acted out their sadistic fantasies--raping, torturing and killing two innocent women that was recorded on tape to be savored later. Police eventually caught up with Riley and Davis--but not before the deadly couple targeted one last, helpless victim.