A former pub landlord teamed up with a violent criminal to murder his elderly parents' "neighbour from hell".

Harry Hood and Ross Russell carried out the fatal attack on Arthur Green at his home in Prestwick, South Ayrshire, in November 2014.

A jury heard how Hood's mother and father had endured years of hassle at the hands of the 60-year-old and his family.

The 46-year-old flew into a rage when it emerged the his parents' window had been smashed and, along with 35-year-old friend Russell, went to Green's home where he was punched, kicked and stamped to death.

Green's young grandson made the discovery of his dead body the next day before the duo boasted they had "got away with murder" after police initially believed Green had fallen.

During a fresh investigation, however, Hood and Russell were held by detectives and now face life behind bars after both being convicted of murder at the High Court in Glasgow.

They were remanded in custody at the High Court in Glasgow on Wednesday pending sentencing in the new year.

Hood's 76-year-old father Harry Snr told how Arthur Green had been a "nightmare" to live beside and that his street had been a "lovely neighbourhood" before that changed "big time" when Green moved in around four years ago.

Mr Hood said the "24/7" noise was "horrendous" and that a dog barked at "all hours".

He told the court: "I blame him (Green) because he was inviting the people there. He was just a neighbour from hell."

The OAP ended up keeping a log of their problems, with police and the council being called in, but the couple were targeted again days before the killing when their window was put in.

Mr Hood recalled a run-in he had with James Philbin - the boyfriend of Green's daughter - who he nicknamed "headbanger".

He told the jury: "He had threatened the wife at the back door then me at the front door. I told him to get out of the road or I would call the police.

"The daughter's boyfriend then threw a half slab through the window where I had been sitting before."

The shocked couple initially went to live at their own daughter's home but returned adamant they would not be forced out. Meanwhile, their angry son plotted to get revenge.

It led to Hood and Russell turning up at Green's home late on November 19, 2014, after they had been playing in a pool tournament.

Green was then battered to death in a brutal attack. The force of the assault was so severe his heart and liver were burst and the majority of his ribs were broken.

The killers fled the scene with Hood heard stating: "If I murdered him, I will happily do time for it."

Russell got his 36-year-old brother Dale to torch the trainers he had been wearing and the next morning the victim's daughter Elizabeth Green went to visit her father.

The 42-year-old recalled: "I had a key... the door was open which I felt was strange. It was like you could turn the handle and get in. My dad always locked the door. My son went in and said 'papa is full of blood'."

Police initially believed the death was suspicious but that changed when it was then reckoned Green had suffered an accident.

After learning this, Hood turned up at the garage where mechanic Russell worked.

Russell was said to have stated they had "got away with murder" as the jury heard both were "laughing about it".

Amid a new probe, Hood, of Ayr, and Russell, of Maidens, both Ayrshire, were arrested. A text was later found to have been deleted on Russell's mobile.

It spoke about a "bit of his head stuck on my boot" but he later insisted this was an old message about a previous assault. Both gave evidence during the trial and effectively blamed each other.

Hood, a pool hall owner who previously ran bars in Ayrshire, denied even being inside Green's house.

He admitted going to the street that night with the Russell brothers but only to make sure there was no "carry on" affecting his parents.

Hood claimed he had been at the back of the property before spotting the siblings coming out the front. He said Russell told him he had given Green "a slap".

Prosecutor Iain McSporran QC said Hood's testimony "did not make sense" and was "simply not true".

Russell meantime insisted it was Hood "in a blind rage" who attacked Green.

He said he had been outside when he heard shouting and then discovered Hood inside the house, saying: "He was basically giving him a doing."

Mr McSporran said Russell was "a good man" for Hood to have with him that night given his history of violence. He has previously been convicted of assault.

The advocate depute said his evidence was "just ridiculous" but the killer denied that.

Dale Russell, of Girvan, Ayrshire, had also been charged with murder before prosecutors dropped the allegation during the trial.

He instead pled guilty to attempting to defeat the ends of justice by setting fire to his brother's trainers. He will also be sentenced next month.