A motorcycle enthusiast takes a road trip and vanishes in Missouri.

A woman walks in on a burglary and is abducted to another state.

A young mother of two is found brutally murdered at home.

A shopkeeper is killed in his store and the whole thing is caught on video.

An innocent woman is gunned down in broad daylight.

An 8-year-old girl fails to return home after visiting family.

Yale PhD student Annie Le disappears from a building on campus.

An innocent man is killed while working at a store in Punta Gorda, Florida.

A Cleveland, Ohio, teenager vanishes without a trace on her way to school.

A teen girl vanishes on her way to school and police suspect foul play.

Foul play is suspected when a couple fails to arrive at their campsite.

A man is bludgeoned to death, and police look to his friends for answers.

A murdered landlady's final days are reconstructed by police.

Someone kidnaps 11-year-old Carlie Brucia, and the video shocks the nation.

A young family's heaven in the Kentucky hills is hell for their neighbors.