Was a woman found dead in a wych elm tree in wartime England a Nazi spy?
Were the West Memphis Three, released in 2011 after a high-profile innocence campaign, guilty after all?
Was Nirvana frontman Kurt Cobain’s death, officially ruled a suicide, actually murder?
Was an MI6 spy found dead inside a locked sports bag murdered?
Did William Herbert Wallace stage an elaborate locked-room mystery to murder his wife Julia?
Was Leo Frank, imprisoned and lynched for the murder of Mary Phagan, wrongly convicted?
Was the unidentified man found dead on an Adelaide beach in 1948 a Cold War spy?
Is OJ Simpson, widely believed to be guilty of murdering his ex-wife Nicole Brown, actually innocent?
Was the legendary serial killer the Zodiac a hoax?
Was there a plot to murder Marconi scientists in the 1980s?
Was the notorious Dr Crippen, convicted and executed in 1910 for the murder of his wife Cora, actually innocent?
Were the Tate-LaBianca murders attributed to Charles Manson actually the results of a drug burn?
Was the star of 50s TV show The Adventures of Superman murdered?
Was there another gunman in the notorious Amityville House murders?
Was the mass suicide at Jim Jones' commune in Guyana in 1978 a CIA mind control experiment?
Was OJ Simpson’s son Jason the true killer of Ron Goldman and Nicole Brown?
Was there a conspiracy to murder Hollywood actress Marilyn Monroe?
Were Diana, Princess of Wales and Dodi Fayed murdered in a staged car accident?
Was British government weapons inspector Dr David Kelly murdered?
Was Pope John Paul I's mysterious death in 1978 actually murder?
Did journalist Danny Casolaro uncover a vast global conspiracy called the Octopus?
Was there a conspiracy to kill Senator Robert F. Kennedy?
Did a hostile alien force slaughter nine Russian skiers in 1959?
Were Jack the Ripper’s victims killed to cover up a Royal scandal?