A rugby league player who pushed a New Zealand musician to his death through the second storey window of a Perth pub has been found guilty of manslaughter in a judge-alone retrial.

Stefan Schmidt was initially convicted in 2012 and given a life sentence with a minimum jail term of 14 years for murdering Andy Marshall by pushing him through the second storey window of Cottesloe's Ocean Beach Hotel in May 2011.

But three West Australian Court Of Appeal judges unanimously determined in August last year that Schmidt would face a retrial, with Justice Michael Buss saying he could have been found guilty of manslaughter instead of murder.

At the opening of the judge-alone retrial in WA's Supreme Court 10 days ago, Schmidt offered to plead guilty to the lesser charge, admitting he had pushed Mr Marshall but didn't mean to kill him.


But prosecutors rejected the plea deal.

On Thursday, Justice John Roderick McKechnie acquitted Schmidt of murder but found him guilty of manslaughter.