London, Aug 7 - A London court is to sentence the killer of an Indian-origin man who had confronted the alleged leader of a gang after his school-going younger brother had become involved in drugs.

Akeel Shah was Thursday found guilty of murdering 21-year-old Adnan Patel in the town of Leyton in east London on July 10 last year, and will be sentenced next month along with three other members of an alleged gang of drug dealers.

The court at Old Bailey had earlier heard that Patel had been summoned to Rokeby School in Stratford where the headteacher told him that his 14-year-old brother Imran had been found dealing in cannabis and would have to be expelled.

Patel, a construction worker and the second of five brothers, then confronted a man called Clint D'Mello, the alleged leader of a gang that was selling cannabis to the teenager, the jury heard.