FOUR members of a teenage gang who battered and stabbed an innocent man to death in an unprovoked attack lasting just 90 seconds are facing life sentences today.

The group - aged just 16 and 17 - ambushed Moses Nteyoho, of Chalcombe Road, Abbey Wood, as he walked along Tavy Bridge in Thamesmead on October 30 last year.

The Old Bailey jury had heard the defenceless 22-year-old victim was simply "in the wrong place at the wrong time".

His killers had travelled by taxi from the Woolwich area to carry out the attack - possibly as revenge for previous trouble with youths from Thamesmead.

CCTV cameras recorded them chasing and cornering Mr Nteyoho with a knife and a hammer before leaving in the same taxi.

Four youths, three aged 17 and one 16, were unanimously convicted of murder.

Judge Gerald Gordon will decide tomorrow whether to sentence them and lift the court order banning their identification.

The judge indicated the starting point is a minimum of 12 years behind bars before being considered for parole.

Detectives discovered the killers had travelled to the scene by taxi from Woolwich that evening.

They got out of the cab after it parked alongside the Tavy Bridge elevated walkway and returned only a minute and 30 seconds later.

Prosecutor Max Hill said: "During those intervening ninety seconds Moses Nteyoho was approached by these males as he walked along Tavy Bridge with his friend.

"Both of these young men were chased. Moses Nteyoho was cornered alongside construction hoardings along the side of Tavy Bridge.

"Moses Nteyoho was subjected to a brutal attack by more than one of the taxi passengers who were armed with weapons including at least one knife and one hammer.

"He was left for dead. The five passengers made off just as they had arrived, by taxi."

Mr Nteyoho died at the scene from his injuries after the attack.

Mr Hill added: "There is nothing to suggest he was anything other than a wholly innocent defenceless victim possibly in the wrong place at the wrong time.

"This was a brutal group attack by assailants who went deliberately to Tavy Bridge with gloved hands and armed with weapons.

"Their behaviour, the instantaneous attack on the deceased indicate violence was their sole reason for going to the bridge."

Mr Nteyoho's friend Simon Olweny-Otim told the court how two youths approached them at around 9.20pm on October 30.

He said: "They started saying ‘come’, then I think they saw Moses, who was friendly and went to them.

"The two boys must have been standing in front of him. They knew they had more boys coming up the stairs.

"I think he slipped and dropped his phone and the other boys caught him and stabbed him."

Mr Olweny-Otim fled when he saw a large knife which he described as like a machete or a short samurai sword.

Three of the youths on trial left the country shortly after the murder on a flight to Nairobi via Dubai.

They were arrested on their return to the UK two months later.

The four defendants, who cannot be named because of their ages, denied murder.