A college student attending a Model UN conference disappears in Chicago.

In 2017, 8-months-pregnant Akia Eggleston never arrives at her baby shower.

Tara Calico goes on her daily morning bike ride, but never returns home.

A 27-year-old medical student fails to show up for a flight to Miami.

Elaine Park is never seen again after leaving her boyfriend's apartment.

A 29-year-old mom never returns after heading out for a drum circle.

A young woman never makes it home to celebrate her mom's birthday.

Matthew Weaver vanishes after heading out to watch the sunrise in Malibu.

A fun-loving 14-year-old vanishes after a family party in Cleveland.

A young man vanishes in Tumwater, WA, with no evidence of foul play.

While on a cruise, a young woman vanishes from her family's cabin.

A 9-year-old walks home from the local bowling alley but never arrives.

A transgender teen in Charlottesville, VA, goes missing.

Police suspect human trafficking when a young woman vanishes.

A mother of three never returns home after leaving work at a hospital.

A veteran and father of three disappears one night in Hermosa Beach, CA.