Often, a serial killer makes it his career to revenge his mother’s treatment of him.
A killer very seldom will go after his own mother.
Serial killers also start out as arsonists and work their way up to killing. A fire allows a person to control a group of people and influence an event in that group of people’s lives.
Sex is attached to the fire in the form of masturbation during the event to heighten the sensation and thrill of control and to personalize the event.
Personal possessions of an upcoming victim are often stolen by a serial killer when he is fantasizing a relationship with the victim. The stolen articles personalizes the relationship of the victim with the killer.
Uses stolen articles to relive fantasy of possessing the victim.
Panties, bras, socks, shoes, and jewelry are articles of interest.