A beloved Chicago physician is stabbed to death in his office in 2006; a California woman learns that her son, 25, was shot and killed in 2001.
A man is shot in the back of the head while asleep in his home in North Carolina; a woman's 20-year-old son is shot down in broad daylight while pumping gas in Alabama.
In 1990, parents learn that their college student son, 21, has vanished from Portland, Ore.; a 47-year-old woman from South Portland, Maine, goes missing in 1991.
A man learns that his daughter, 23, has been found dead in her apartment in Carbondale, Ill., in 1982; a woman disappears from her home one night in 1996.
Melinda Elkins loses her mother to a brutal murder and Melinda's husband becomes the prime suspect.
A woman is attacked and left for dead in her home while her 3-year-old daughter sleeps in Modesto, Calif., in 1988; parents become distraught when their son does not come home from a night out.