AN ‘EXTREMELY dangerous’ teen who stabbed people ‘for fun’ in a water fight in Hyde Park could face a life sentence, a judge said today.

Joshua Clements, 18, lashed out with a hunting knife in front of horrified sunbathers who had gathered to enjoy the warm weather earlier this year.

3 Pictures showed Joshua Clements in a mask after he attacked someone with a hunting knife at the Hyde Park water fight Credit: news@centralnews.co.uk

3 The judge said Joshua Clements, pictured, is 'extremely dangerous' and stabbed people 'for fun' Credit: news@centralnews.co.uk

Shocking footage taken on an onlooker's mobile phone on July 19 showed the attack on Audean Thompson, which so serious Clements was charged with attempted murder.

Judge Michael Topolski QC today demanded reports from social services to find out details of the teenager's violent past.

He said: “He is extremely dangerous. I want to know how dangerous and how disturbed, if at all disturbed, he is."

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Judge Topolski added: “What you should be asking them for is if they are in possession of any material regarding significant violent behaviour by this defendant in the period prior to the commission of these offences.”

Judge Topolski is considering jailing Clements for life and told the court: “It was stabbing for fun.'

More than 4,000 people had gathered for the water fight but violence erupted as police tried to disperse the crowd.

Officers were pelted with bottles and one was stabbed with a bottle.

Clements has admitted wounding with intent over the attack on Mr Thompson, and pleaded guilty to a similar offence in relation to his second victim, Duane Williams.

He also admitted possessing a hunting-style knife, handling a stolen ring and Armani pouch, as well as possessing crack cocaine and heroin with intent to supply.

The teen has previous convictions for robbery, battery, possession with intent to supply heroin, possession with intent to supply crack cocaine, possession of a knife in a public place, and failing to comply with the requirements of a youth rehabilitation order.

He did not attend today's hearing at the Old Bailey.

3 The knife used by Joshua Clements in the Hyde Park water fight stabbing

The judge warned that if social services do not provide material he may summon them to court to 'explain why they are not cooperating in the sentencing exercise of a judge at the Old Bailey'.

Judge Topolski said: “This sentencing exercise is adjourned until Wednesday 30 November.

“I have already made orders with regards to reports, I have done what is constructively useful with regard to ascertaining material from social services.”

At a previous hearing in August, Judge Michael Topolski QC said Clements might be facing a life sentence, even though the crown had chosen not to pursue a charge of attempted murder.

He said prosecution papers 'revealed the horror of what was going on that evening in Hyde Park'.

Judge Topolski added: "This is not, on the face of it, just stabbing in the course of robbing, it was stabbing for fun going on.

"I just wonder if this defendant may be a life candidate. He is terribly young and terribly dangerous."

He added: "To say this is a disturbing case is an understatement."

The judge warned Clements at the hearing on 25 August: "In one sense, one decision has already been made. You are facing a very significant term of detention."

Clements, of White City, London, pleaded guilty to two counts of wounding with intent, possession of a knife, two counts of handling stolen goods, and two counts of possession of crack cocaine and heroin with intent to supply.

He was remanded in custody before his sentencing on 30 November.

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