When Fred Jablin, a beloved Richmond University professor and devoted father, goes out to retrieve the morning newspaper on Oct. 30, 2004 and is gunned down in his driveway, his ex-wife, Piper Rountree, is the prime suspect. But, before investigators... (more) in Richmond, Va. can make their case, they must deal with a trail of confusing clues and an unusual relationship between Rountree and her sister, Tina Rountree. Correspondent Harold Dow reports.