A martial arts expert who bashed his girlfriend to death and dumped her body in bushland has been beaten in a brutal 'retaliatory attack' in prison.
Sayle Kenneth Newson, 43, of Buff Point on the Central Coast, was found guilty of murdering mother-of-two Carly McBride, 31, by the NSW Supreme Court on June 24.
Just four days later, Newson was viciously bashed by three inmates in the maximum security Shortland Correctional Centre in the Hunter Valley.
Sayle Kenneth Newson, 43, (pictured) was found guilty of murdering girlfriend Carly McBride on June 24, and was bashed by three inmates in a 'retaliatory attack' in prison four days later
Newson sustained a broken jaw and eye socket during the brawl at the Shortland Correctional Centre in the Hunter Valley (pictured), and was admitted to hospital for surgery
The attack gave the martial arts fighter a broken jaw and eye socket, along with other extensive internal and head injuries that required surgery in hospital.
The attack was believed to be retaliation, with two of the men understood to be indigenous like Ms McBride, the Daily Telegraph reported.
The Muay Thai boxer vehemently denied he murdered Ms McBride in the seven years since she went missing on September 30, 2014.
Her remains were found almost two years later in thick scrub at Owens Gap, about 17km northwest of Scone, on August 7, 2016.
A post-mortem examination revealed Ms McBride suffered blunt force trauma to her face and back of her head, indicating she suffered at least two blows to the skull and one to her back.
The 43-year-old had been dating Carly McBride, 31, (pictured) for eight weeks before she went missing on September 30 in 2014 and her body was found two years later
Ms McBride met Newson at a drug
