Unsolved cases — deep dives into single unsolved deaths or disappearances.
More than a century after the brutal murders terrorized Victorian London, the identity of history's most notorious serial killer continues to elude investigators and fuel endless theories.
On Thanksgiving Eve 1971, a polite man in a business suit pulled off the only unsolved air piracy case in American history, then walked into the storm and disappeared forever.
For over two decades, retired NYPD detectives have claimed that 45 young men found drowned across America were victims of an organized killer network, not accidents.
Nearly three decades after six-year-old JonBenét Ramsey was found murdered in her Boulder home, the case remains one of America's most perplexing unsolved crimes.