Benjamin Field, a church warden, is accused of murdering a university lecturer and attempting to kill a retired headmistress in order to benefit from their wills.
Mr Field is accused of plotting the deaths with the assistance of a magician, Martyn Smith.
Mr Field and Mr Smith are currently on trial at Oxford Crown Court accused of murder, conspiracy to murder and fraud.
David Jeremy QC is instructed for the defence by Neil Jarvis, of Reeds Solicitors.
This matter has received considerable press attention. Please see coverage from the BBC, Sky News, the Telegraph, the Times, the Independent and the Guardian.