FBI joins investigation into death of 3-year-old Riley Fox , slain in 2004 . Comment: Authorities initially charged father in the killing , but DNA exonerated him . Last month , the FBI joined the investigation at the request of Will County State Attorney James Glasgow . Attorney for family blasts law enforcement for lack of progress on case .
FBI joins investigation into death of 3-year-old Riley Fox , slain in 2004 . Comment: Authorities initially charged father in the killing , but DNA exonerated him . Attorney for family blasts law enforcement for lack of progress on case .