Dennis Lynn Rader, also known as BTK, is an American serial killer who murdered at least ten people in Wichita and Park City, Kansas, between 1974 and 1991. Although Rader occasionally killed or attempted to kill men and children, he typically targeted women. His victims were often bound, sometimes with objects from their homes, and either suffocated with a plastic bag or manually strangled with a ligature.

Francis Dolarhyde is a fictional character and the main antagonist of Thomas Harris' 1981 novel Red Dragon, as well as its film adaptations, Manhunter and Red Dragon.