When a Killer Calls: A Haunting Story of Murder, Criminal Profiling, and Justice in a Small Town (Cases of the FBI's Original Mindhunter, #2)

by John E. Douglas

If he had any prior murders, they would be against children or young girls. Unlike a lot of serial killers, he’d be too intimidated to go after adult women—even professional sex workers, whose job makes them inherently more vulnerable.