Deaths and Disappearances

two main cases tonight - The murder of twins Julie and Jill Hansen, someone on the night of December 19, 1987 set fire to the Hansen House, ultimately killing both Julie and Jill Hansen. Could it have been their half brother Donny as prosecutors claim?Next is Doreen and Stephen Marfeo of Rhode Island, In 1990, Doreen disappears and law enforcement's eyes are on her husband, Stephen. Were they correct? Doreen remains missing to this day.