Yes, saw your other post about that and you made a good point, but what was in it for the police and forensic scientists who put their careers on the line?
Bridget, I'm not certain it was a question of "what was in it.......," rather, that at some point, the whole thing gained a life of its' own and became subject to the law of unintended consequences. I guess all it took was one error of judgement or a mistake which was neither admitted to or rectified, coupled with the desire to cover anothers back. I was told as a child, that when a lie was told, a second would have to be told to cover the first. I believe they "knew" everything there was to know before they went into the farmhouse and may have inadvertantly overlooked, or swept aside as unimportant,anything which didn't fit, ultimately resulting in the need for a conspiracy of silence.