EIGHT teenagers have been found guilty of slashing a man's neck and then bragging about it on YouTube.

The youngsters, aged 16 to 18, punched a 26-year-old man at a birthday party in Ottenden Street, Lewisham, before hitting him with a brick and slicing his neck.

Le-Reece Buchanan, of Lewisham High Street, Alex O'Reilly, of Gilmore Road, Lewisham, and Lloyd Reid, of Lawn Terrace, Blackheath, were all convicted of GBH with intent at the Old Bailey.

The three Black Mafia gang members, all aged 18, were joined by five other boys who are too young to name in attacking their innocent victim after forcing their way into the party house.

They left him needing 17 stitches in his neck, as well as several stitches to an artery and further treatment to his head and eye.

Lewisham police officers were called to the scene at 2am on May 24 last year and arrested all the offenders within a few hours.

But Buchanan, O’Reilly and a 17-year-old had already managed to produce a series of video clips for YouTube.

During raps they bragged about the party attack as well as other violent acts committed in the past.

The Met's Detective Constable Karen Wilson, who investigated the case, said: “This group gathered outside a house where a small group of young people were having a party, and caused them terror.

"They banged on a window, shouting the name of their gang before forcing open the front door and going straight to attack the first man they could see, who had nothing to do with them.

“At least one was armed with a brick, another had a sharp weapon, possibly a knife, and one was seen by witnesses to be holding a gun."

She added: "The group all pleaded not guilty, forcing the victim and other witnesses to give evidence during the trial.

"I am glad for the victim that this is now over and I hope that he can now move on with his life."

All eight teenagers, who denied the single charge, have been remanded in custody and will be sentenced on July 2.

Gang’s internet boasts

This is not the first time gangsters have used the internet to brag about violence.

In August last year News Shopper revealed how two of Shakilus Townsend's killers produced a rap video in which they boasted about carrying an 'Uzi gun', attacking people with bottles and hitting women.

Under the name SMN - the Shine My Nine gang - Tyrell Ellis, aged 19, and 18-year-old Don-Carlos Ellis appeared with 14 other youths in a video uploaded on YouTube.

Lyrics included: "When I’ve got the .22, trust I’ll leave your brains on the backseat" and "I’ll put a six to your cheek and your wife get beat".

Last year the Ellis brothers and five teenage accomplices were jailed for a minimum total of 87 years for stabbing to death 16-year-old Shakilus.

The Deptford teenager was lured to his death by girlfriend Samantha Joseph in July 2008.