evidence takes me. it didn't add up. the deeper i got into the investigation, it began to dawn on me that kris was innocent. >> ron was loyal to kris. he carried on after the case was over, even though he wasn't being paid or anything. >> ron and clive noticed discrepancies in the prosecution's story of the murders and set out to look for answers. >> i demanded to the see the files of the prosecutor and of the police. i start going through it and i'm sitting there with extraordinarily bad coffee in police headquarters going through a carefully tabbed file. i discovered that neville butler, the star witness, failed his polygraph test, note that is showed that the police knew that kris had lost his gun before the murders took place. this case is more evidence that was covered up than any case i have ever seen in decades.