Rest assured , Sharingan, that Bamber is a calculating man, of psychopathic tendencies, who was rightly convicted. He tried to sell the idea that his sister, who had had some degree of mental illness, had done the murders and then killed herself. This is the story he is still trying to sell. It was undone by the fact that he was such an obvious liar under cross-examination and came across as the cold, calculating person who would murder his step-parents and his sister to make sure that he was the one who got the money. The forensic evidence was also against him; naturally he has been concentrating on that, because it showed his version of the shooting was false; but that's only part of it. He had motive too