Two brothers killed a man in his own home with a samurai sword and nunchaku after a robbery went wrong.

Jason Bryden, 38, was stabbed six times and had three arteries severed in the attack on Hareshaw Gardens, Kilmarnock, on July 4, 2015, which was described as "a bloodbath".

Mr Bryden died in Crosshouse Hospital three days after the attack.

On Friday, James Clark, 37, was found guilty of murdering Mr Bryden while his brother John, 39, was convicted of the reduced charge of culpable homicide.

James was told he faces a life sentence for the murder.

The High Court in Glasgow heard the brothers, who were high on drink and drugs, decided to rob Mr Bryden to get back a gold bracelet which had sentimental value for them.

They claimed in court that Mr Bryden had given them drugs in exchange for the jewellery and they wanted to steal it back.

When questioned by police, the Clarks said they had never been to their victim's house but later changed their story and claimed Mr Bryden's death was an accident.

The brothers said they went to his home with their faces masked with scarves and found him waiting for them with a samurai sword.

Neighbours who could see into the property spoke of Mr Bryden being attacked as he sat in a sofa near the window.

The court heard the neighbours then heard a voice "screaming in pain and terror" coming from the house.

The brothers, both from Kilmarnock, denied taking any weapon with them, but the Crown said they had nunchaku and a knife. The killers alleged the samurai sword was in the house when they arrived.

Prosecutor Richard Goddard described the assault as "a sustained, frenzied attack".

In evidence James Clark denied murder and stated: "I didn't mean it. It was an accident."

The killer, who has 38 previous convictions including one for attempted murder, was told by Judge Bill Dunlop QC: "In your case there is only one sentence available which is life imprisonment but a punishment part will have to be determined."

Sentence was deferred on him and John, who has 23 previous convictions, until August.