Two Nigerian teenagers Nelson Idiabeta and Nathaniel Okusanya on Wednesday bagged long time jail terms for killing Kwame Ofosu - Asare, a 17-year-old student while mistaking him for a rival gang member, Daily Mail reports.

The pair were members of the TN1 gang - Trust No One - out to avenge one of their member who was stabbed by a rival gang member from the GAS gang - Guns and Shanks - just hours earlier.

They had toured housing estates in Brixton, South London, United Kingdom, to find rival gang members and came upon 17-year-old Kwame and his friend, who had nothing to do with any gangs.

He was reportedly coming from the studio with his friend were he went to record a track for his mum before he was attacked.

The duo stabbed the trapped Ghanaian 14 times penetrating his lungs and liver while his friend managed to jump the wall.

A court in the early hours of Wednesday sentenced Idiabeta and Okusanya to jail for 19 and 20 years respectively.

After an Old Bailey jury found the pair guilty Nelson Idiabeta, now 18 was jailed for a minimum of 19 years while Nathaniel Okusanya, 19, was jailed for 20 years.

Sentencing Judge Richard Marks QC said: 'I am entirely satisfied having heard the evidence the background to this terrible offence is to be found in revenge between two gangs.

The attack took place in the Moorlands Estate in Brixton on the March 2 2012.

He was a sixth-form student of Forest Hill School and excelled in sport, music and acting. He moved to London from Ghana in 2002.

mosun_ade: There are thousands of them so called Naija/British boys roaming about London with no parental care.

mosun_ade: There are thousands of them so called Naija/British boys roaming about London with no parental care.