Paradise Lost: The Child Murders at Robin Hood Hills is a 1996 documentary film directed by Joe Berlinger and Bruce Sinofsky about the trials of three teenage boys in West Memphis, Arkansas for the murder and sexual mutilation of three prepubescent boys. The boys on trial for the crime are: Jessie Misskelley, Damien Echols and Jason Baldwin, also known as the West Memphis 3.
During the course of the filming, John Mark Byers, the stepfather of one of the victims, gives the filmmakers a knife which has blood in the hinge. The filmmakers turn the knife over to police, who examine it; the DNA is similar to that of himself and the boy but the evidence is nonetheless inconclusive since the DNA evidence produced was fragmented and can not provide concrete links. Other evidence is lost. All three teenagers are convicted.
The film was followed by a sequel, Paradise Lost 2: Revelations (2000), which suggests that further evidence was missed or suppressed and attempts to prove Echols' innocence.