Keith Hunter Jesperson was born in Chilliwack, British Columbia, on April 6, 1955, and grew up partly in Washington state. He was a very large child, bullied for it, and by his own account killing animals from an early age. He wanted to be a Mountie, failed the medical after an injury, and became a long-haul truck driver, which gave him a job in which a man moves constantly between jurisdictions and is expected to be nowhere in particular.
He killed Taunja Bennett in Portland, Oregon, in January 1990. What happened next is the reason the case is unusual. A woman named Laverne Pavlinac told police that her boyfriend, John Sosnovske, had killed Bennett and that she had helped him, a story she invented in order to get away from him. She led detectives to the scene and gave details that fitted. Both were convicted in 1991. Sosnovske took a plea to avoid death and got life; Pavlinac got ten years. They served roughly four years for a murder neither had anything to do with.
Jesperson was enraged that someone else had been given credit. He started writing anonymous confessions on truck-stop lavatory walls, then posted letters to newspapers and prosecutors, signing them with a drawing of a smiling face. Reporters called him the Happy Face Killer. He went on killing: at least eight women between 1990 and 1995, most of them picked up at truck stops or on the road, strangled, and left in ditches and fields in Oregon, Washington, Wyoming, Nebraska, Florida and California. Several were not identified for years.
He was arrested in March 1995 after killing Julie Winningham, a girlfriend, in Washington, which was the first killing that connected to him directly. He confessed, and his confession is what freed Pavlinac and Sosnovske later that year. He has since claimed as many as a hundred and sixty victims, a figure no investigator accepts; eight are confirmed and a small number of others are considered probable.
He is serving multiple life sentences in Oregon. He writes letters constantly, has corresponded with journalists and with his own daughter, Melissa Moore, who has written and broadcast about growing up as his child. The Pavlinac and Sosnovske convictions remain the most-cited example in American law of a false confession surviving all the way to a verdict.