Rappers sample songs they like, so why can't a serial killer sample other serial killers? Has BTK consciously lifted some of his moves from the "tracks" of history's most infamous serial killers?
Psyche's Knot explores this concept of serial killer copycats. Nice description of how the BTK case is shaping up:
BTK... this is an engrossing, hypnotizing mystery. In the realm of true crime, you might even liken it to a fine bourbon, well aged in it's oak barrel for over two decades now. BTK has trumped many other more prolific or horrific serial killers by doing something quite crafty. He came back.
Update: "In letters to the media, the strangler called the force that spurs him to kill "Factor X" and compares it to the same force that triggered Jack the Ripper, Son of Sam and Los Angeles' Hillside Strangler."
In one letter, the strangler wrote, "When this monster enters my brain, I will never know. But, it's here to stay." He later said, "The pressure is great and sometimes he runs the game to his liking. Maybe you can stop him. I can't. He has already chosen his next victim or victims I don't know who they are yet. The next day after I read the paper, I will know, but it's too late."
A Serial Killer Haunts Again [CBS]