The man in the mugshot below was charged today with the 2004 rape and murder of 3-year-old Riley Fox, the child pictured above. His name is Scott Eby. He is a sex offender already serving time behind bars. Police say he was on parole at the time of the little girl's grisly murder. The arrest alone would be a breakthrough for any family seeking justice after such a tragedy. But there's much more to this case, which was featured in this 2008 "20/20" report. Kevin Fox, Riley's father, was originally arrested and charged with the crime based largely on a disputed videotaped confession. According to investigator theories, he accidentally killed her, then panicked and staged a sexual assault before duct taping her mouth and dumping her in a river near their house. After eight months in prison, Kevin Smith was cleared by DNA evidence. The Fox family, who had said all along that the confession was coerced, later received a multi-million dollar damages settlement. Full report tonight from Ashleigh Banfield. Embedded beneath Eby's mugshot is the first part of the "20/20" report, which includes interviews with Kevin Fox after has cleared.