The Intruder Theory of the Killings

The defence tried their best to present a possibility that the killings were the work of a stranger intruder, but they don't have that much to work with. The final nail in Don's coffin came when the prosecution told him that he'd given himself away long ago by telling various people things only the killer could have known. 72 witnesses had testified so far in this mammoth trial and there would be just two more, a couple who were friends of Dion and Christel. They said that on the night before the murders, Dion andChristel had come to their house for dinner, but neither Don or Martella were present,. which meant that the brother and sister had been alone on the farm together.