Arthur Leigh Allen
The prime suspect in the unsolved Zodiac slayings, Arthur Leigh Allen was a man with many dark secrets.
The prime suspect in the unsolved Zodiac slayings, Arthur Leigh Allen was a man with many dark secrets.
Did the Welsh double child killer Harold Jones commit no further crimes, or did he carry on killing as the London serial killer known as Jack the Stripper?
Was James Maybrick the Ripper? Or is the evidence connecting him to the most notorious serial murders a cleverly concocted hoax?
Although convicted as the rapist known as the Green Man, Albert DeSalvo confessed to being the Boston Strangler, but doubt remains as to his guilt.
Was the enigmatic Francis Sweeney the Mad Butcher of Kingsbury Run, or did he just enjoy playing cat and mouse games with police?
First put forward as a suspect by author Robert Graysmith, Rick Marshall shares many characteristics with the notorious Zodiac killer of San Francisco.
An alleged suspect in the BTK serial murders. Was the frightening TK real?, or merely the figment of a disturbed imagination?
Thirteen years after 3-year-old Maddie McCann went missing from Praia de Luz, a new prime suspect, with a long history of sexual abuse, has emerged.
A suspect in numerous unsolved crimes, John Cannan is a rapist and serial killer whom police suspect was involved in the disappearance of Suzy Lamplugh.
Was Jack the Ripper a Jewish cobbler from the East End, or was the sinister Leather Apron merely a scapegoat for the Whitechapel murder?.