When 18-year-old Lee Cutler vanishes, police find a copy of "Into the Wild" in his abandoned car.
A 21-year-old college student goes missing after her car swerves off the road.
Michele Whittaker disappears after hitching a ride to a truck stop.
Royal Scoop Daniel
Billy Smolinski disappears a week after discovering his girlfriend has been cheating on him.
Detectives question a missing realtor's husband but do not make an arrest, and their case goes cold.
After a Colorado mother disappears, it comes to light that she has been working as an adult escort.
After 23-year-old Brandi Wells goes missing, her car is found abandoned on the side of a highway.
Atheist activist Madalyn Murray O'Hair disappears along with two members of her family.
The search for missing Chicago blues guitarist John Spira spans two years.
A 25-year-old woman disappears while out on a date with a friend from out of town.
A former professional basketball player and his girlfriend disappear.
A woman goes missing, then a warrant for her arrest is issued on felony theft charges.