A Czech-born history professor walked out of a Boulder dinner party in 1969 and vanished — the CIA claimed he was safe, then retracted the claim, and his only suspect killed herself with cyanide in a psychiatric ward.
A twenty-eight-year-old nuclear plant worker, already contaminated with plutonium under suspicious circumstances, was killed in a one-car crash while driving to deliver documents to a reporter — the documents vanished from the wreckage.
Kenya said lions killed her and lightning burned the remains — but a father's relentless investigation proved his daughter was hacked apart with a machete and set alight in the Masai Mara.
CCTV footage shows a beloved Laotian development worker stopped at a police post in Vientiane, transferred to another vehicle, and driven into the night — he has not been seen since December 15, 2012.
On April 3, 2000, Haiti's most fearless journalist was shot dead in the courtyard of his own radio station — and twenty-five years later, the gunman's employer remains officially unknown.
A DC-9 fell from the sky over the Tyrrhenian Sea in 1980, killing all 81 aboard -- four decades of trials, erased radar tapes, and dead witnesses have produced two theories and zero convictions.
He walked into a Tokyo department store and vanished — hours later his dismembered body lay across the railway tracks he once commanded, the truth buried with him.
A tow truck driver was sentenced to death for shooting the founder of one of Malaysia's largest banks — but nobody could explain who paid him, or why.
A Catholic priest who investigated clergy sexual abuse was found with his throat slit at the foot of a statue of St. Michael the Archangel in his own church -- twenty-eight years later, no one has been charged.
An Iranian blogger filed a formal torture complaint from inside a Tehran detention cell — four days later, his family was told to collect the body.
The self-proclaimed World's Strongest Man was found dead in his Laval living room with seventeen bullets in his body and the TV remote still in his hand — nobody has ever been charged with the murder of wrestling's most dangerous secret-keeper.
A parcel bearing the Nigerian coat of arms was delivered to the home of the country's boldest investigative journalist — it detonated on his lap, and the military regime he was investigating never charged a soul.