Lancaster County, Pa., known for its Amish heritage and peaceful lifestyle, is home to the quiet town of Denver. But on July 22, 2008, the small town was rocked when Michael Roseboro placed an emergency call to 911, saying he found the body of his wife, Jan, at the bottom of their swimming pool. Less than an hour later, Jan Roseboro-mother of four-was pronounced dead at the hospital. The Roseboros were well known and respected in their community, where Michael ran his family's century-old funeral home and Jan was a stay-at-home mom. So idyllic was the couple's life together that friends joked that they were like Ken and Barbie. Everyone was sure her death was an accidental drowning, except for the fact - as investigators put it - adults who know how to swim typically do not drown in their own swimming pools. Did Michael Roseboro kill his wife to be with his mistress of only a few weeks? Or, did police, with little evidence to go on, rush to judgment, as Michael Roseboro's family claims? And does Angela Funk know more than she is telling, as prosecutors believe? Harold Dow reports on 48 HOURS MYSTERY.