Serial Killers typically murder three or more victims in separate events over time, with cooling-off periods between killings.
An anonymous gunman calling himself “3-X” murdered two men in 1930, claimed ties to a secret Red Diamond Society, taunted police with letters, then vanished.
Truck driver Keith Hunter Jesperson, the “Happy Face Killer,” strangled at least eight women between 1990 and 1995. Investigators later examined possible accomplices.
By day, Robert Hansen kneaded dough and baked cookie and cakes behind the counter of his Anchorage bakery. By night, he flew women into the Alaskan wilderness, so he could hunt them down like prey.
Israel Keyes buried kill kits years before he used them, flew thousands of miles to murder strangers, and returned home like nothing happened. He called it “discipline,” not compulsion.
Aileen Wuornos murdered seven men along Florida highways between 1989 and 1990, claiming self-defense but leaving a trail of calculated executions.
The Zodiac Killer transformed homicide into communication. Each murder was a message, every cipher a performance. Half a century later, his handwriting remains on evidence tags, his symbol on unsolved files, and his identity — still hidden behind the circle and cross