29/12/2021
Thomas Hargrove has been archiving homicides for years through his Murder Accountability Project. Through his experience, he came up with an algorithm that found patterns in recent unsolved murders linked to at least one other murder through DNA. This allowed him to estimate the number of unsolved cases in the U.S. at any given time. According to The New Yorker, he believes that the number of active serial killers in the U.S. is around 2,000.