Why was the silencer so important to the prosecution? This episode covers the issues surrounding the fact that two were recovered from the White House Farm. The first was obtained by the police, and the second was found by the beneficiaries of the estate. The jury believe it contained Sheila Caffell's blood group, but they didn't know that the blood also matched Robert Boutflour, Jeremy Bamber's uncle who testified against him and stood to benefit financially from a conviction.