ABC News | Man charged with murder of twin brother found not guilty by reason of mental incompetence ABC News A man accused of murdering his twin brother at their family's home south of Adelaide has been found not guilty by reason of mental incompetence. The court previously heard Lucas Brian Timothy Cawte, 25, fatally shot his brother Jake in March last year ... 'Tragic' death: Young South Australian man 'not guilty' of murdering twin brother Man who killed twin brother cleared of murder charge Supreme Court Justice Kevin Nicholson has found Lucas Cawte not guilty of murdering his brother Jake due to mental ... |