A man accused of murdering another man in Lennox Head in 2010 says authorities are pursuing the wrong man.
Kevin Purtill, 41, will tell the Supreme Court his brother Warren was the culprit.
Warren Purtill, 48, is already serving time in prison as an accessory to the murder. He had his sentence reduced by agreeing to give evidence against Kevin.
Byron Bay businessman Jack Garda died after he had his throat cut in a drug deal gone wrong at a house in Lennox Head on 8 February 2010. His body was later found in a shallow grave at Broadwater.
The Supreme Court hearing continues.