In 2014, Rebecca Downey said goodbye to her children before they left for a visit with their father, but never returned. Here is where the children might be.
After two siblings went missing in 2014 allegedly at the hands of their father, the children's mother, Dr. Rebecca Downey, has not given up the search.
Patrick Mullins' mysterious 2013 death remains unsolved today, and features on Netflix's "Unsolved Mysteries." Here are some theories about what happened.
It's a sad fact of modern life that individuals meet a violent end that remains shrouded in mystery, years after the fact, and suspects somehow disappear.
Even with the high-tech information gathering gear available, some mysteries linger on, especially when they involve something unidentified in the sky.
The death of a teenager on the cusp of adulthood is a tragedy, bringing grief to family and friends. That's made worse when the alleged facts don't add up.
Shortly after the Great Depression, a serial killer dismembered and killed at least a dozen victims in Cleveland. Here is the story of the Torso Murderer.
Although most of Christie's works range from good to great, some stand out for good reasons or bad. Here are the best and worst Agatha Christie mysteries.
Diana Spencer, the former Princess of Wales, died in a rather public and tragic way. One thing that remains undetermined has to do with a particular white Fiat.
It's sometimes said that there's no such thing as bad publicity, as long as they spell the names right. Golden Age Hollywood star Maureen O'Hara disagreed.
Agatha Christie penned over 150 short stories and 66 novels, and you may wonder how could she possibly come up with so many plots! Here's where a few came from.
In West Point's 200-plus years, only one cadet has gone missing: Richard Colvin Cox, whose disappearance triggered one of the largest manhunts in U.S. history.
Baby Thomas Gibson went missing over 30 years ago after playing in the front yard of his home. However, the whereabouts of Gibson still remains a mystery.
Some people will hold that life does indeed imitate art. They usually aren't talking about crime, however -- certainly not about Agatha Christie. Right?
Prince's death in 2016 left many shocked and confused. However, there is still some controversy around how the famous musician died, and who is responsible.