Susan Cox Powell's family hopes efforts to peer into an encrypted computer hard drive will give them answers about what happened to the Utah mother who disappeared in 2009. The computer belonged to her husband Josh Powell who later killed their two sons and himself. Susan's sister Denise Ernst, Cox family lawyer Anne Bremner and Cox family investigator Rose Winquist discuss the latest the case with Nancy Grace in this episode. Forensic tech expert Ben Levitan explains how the hard drive could be unlocked.