Certain killers are not embarrassed by their crimes. Many are quite proud of them. One example is Gary Ridgeway. In his statement to the police, he declared he would never claim to have taken the lives of any victim's but his own, because he would not want to take that away from another (killer).

I'm not saying JonBenet's killer was a serial killer, but there are many, many 'one-hit wonders' with the same type of thinking as the Ridgeways of the world.

Rainsong