About 20/20 Season 2011, Episode 4 : Mother's Day Murder

Who killed a popular school nurse and beloved mother of five from a picture postcard New England town on Mother's Day, 2009? Newly divorced Stacey Burns was viciously murdered in her bedroom, her body discovered by her two oldest kids. Could ex-husband and the father of her children, Ed Burns, have had a motive after going through a bitter divorce. Did her ex-boyfriend, Jim Vittum, have one after a recent break up? Or did someone else play a role in the murder? A year and a half later, New Hampshire State Police still have many questions left to be answered.