The Finsbury Park mosque killer was deemed a risk of serious harm to the public 11 years earlier following an attack in Swindon.

Darren Osborne left a drinking pal unconscious with a badly broken jaw after a brutal assault with a weapon.

And the 48-year-old's own barrister told the court 'What Mr Osborne recognises is that; when in drink, there are occasions where he loses his temper'.

The murderer was jailed for two years with an 18 month extended sentence in May 2006 after a judge ruled he posed a significant risk of serious harm in the future.

Osborne was living with his wife and three children on Queens Drive when he attacked a drinking pal with a bike lock.

Swindon Crown Court was told how Osborne and the victim Michael Boden had been out drinking on the night of Sunday May 7, 2005.

The following morning Mr Boden cycled to the defendant’s house and saw him sitting on his sofa, but not answering the door.

He left but returned later in the day when prosecutors said Osborne hit him about the head with a D-lock bicycle security device.

However the defendant insisted he had struck the victim over the head with a plant pot, before continuing the attack outside the house.

“The witnesses say there were repeated assaults on the injured party who was rendered unconscious by the assault,” Stacey Turner, prosecuting, said.

She said Mr Boden suffered a badly broken jaw, a fracture to the bone behind his eyebrow and a large cut to the back of his head which needed stitches.

He spent three days in hospital as a result of the attack and also needed to have his jaw wired.

Osborne, of Queens Drive, pleaded guilty to grievous bodily harm and criminal damage to Mr Boden’s bike.

He was charged with grievous bodily harm with intent but after he admitted simple GBH prosecutors said they would not seek a trial. He also admitted damage to Mr Boden's bike.

The court heard he had a history of offending, having been convicted of actual bodily harm on four occasions, assaulting police twice as well as common assault, criminal damage and public order offences.

Robin Shellard, defending, said in his statement Mr Boden told police that he wasn’t going to report the matter until his client made a complaint about him.

He said that it was Osborne who had called the police after the victim came to his house with some friends and he was assaulted.

But after that, he accepted he lost his temper and after lashing out with the plant pot continued the attack but could remember little of it.

“What Mr Osborne recognises is that when in drink there are occasions where he loses his temper,” he said.

“And when he loses his temper he expresses violence, and that is something that troubles him.”

He said that the last ABH was for domestic violence against a woman who he still lives with and took place in 2003.

Jailing him Judge Tom Longbotham said “You lost your temper and you lost your temper in a very substantial way.”