Tiffany Valiante, a promising young athlete, is struck by a train four miles from home. But was her death a suicide or something more sinister?

A beloved father is brutally mutilated, but his presumed killer, a woman he knew from high school, escapes without a trace.

Buffalo Jim Barrier's larger-than-life presence in Las Vegas rankled the mob. Could that explain his untimely death under suspicious circumstances?

Bigfoot, orbs, UFOs, poltergeists and skin-walkers. For these Navajo Nation rangers, paranormal activity is just part of the job.

Twenty-year old Josh Guimond leaves a college party without a word and is never seen again. Two decades later, his loved ones just want answers.

Patrick Mullins' unmanned boat is found miles from his home. When his body surfaces a week later, authorities are left with more questions than answers.

A woman and her young daughter experience hauntings in their new apartment, linking them to the grisly murder of Marliz Spannhake in 1976

When a child is kidnapped by their own parent, what recourse does the family have? These two cases explore the unique pain of parental abduction.