Todd Kohlhepp, convicted of killing seven people after he pleaded guilty earlier this year, wrote that he killed more.
Kohlhepp, 46, admitted to chaining a woman inside a storage shed on his rural property for two months and to a 2003 massacre of four people at a motorbike store, among other crimes, noted Reuters. He pleaded guilty to all charges against him—including the seven murders, kidnapping, and sexual assault—before he was sentenced to seven life terms, avoiding the death penalty.