Yancy Noll, a well-liked Seattle wine steward, left work one evening in 2012 and headed home. Ten minutes later, he was dead. Peter Van Sant and 48 HOURS investigate the death of Noll and the trail that would lead police to an unlikely suspect in "A Student of Murder".

A popular football coach is serving life for killing his pregnant wife -- was evidence hidden that could set him free? "48 Hours" correspondent Richard Schlesinger investigates.