to wang yam.yone else? and the answer has to be, very, very unlikely. there is no evidence he had ever been in the house. no. no evidence he had touched allan chappelow. no forensic evidence. no evidence. but no evidence. no evidence. but no evidence that anyone else had, either. could there be a viable alternative? we didn't find one. wang yam is currently serving a 20 year sentence and is being held in prison. he continues to maintain that he is innocent. i am the first journalist to interview wang yam. over the past year i have spent 25 hours speaking with him by telephone. following his arrest in switzerland, wang yam was extradited to britain. why do you think your client was innocent? there was no evidence at all fore nsically there was no evidence at all forensically that he had committed this crime. there were no traces of blood found upon clothing and there we re blood found upon clothing and there were no witnesses seeing him. there was nothing in his flat. he had no history of violence