Darren Deon Vann
Since Darren Deon Vann was arrested in 2014 for the murder of a 19-year-old prostitute, he has confessed to killing at least six more women. But it wasn't the first time he'd been in trouble with the cops. Vann had been convicted of aggravated rape in 2009 in Texas, and after serving a total of five years, he returned to his home state of Indiana in July 2013. There, he killed 19-year-old Afrikka Hardy, strangling her and leaving her body in the bathtub of a motel room. But he was caught on surveillance cameras, and when police questioned him, he admitted to killing six more women. Soon, he led investigators to bodies that he had left in abandoned buildings around Gary, Indiana. In addition to murder charges, Vann faces counts of rape, attempted murder and criminal confinement, and is facing the death penalty for his crimes.