A Tanzanian-born Muslim man who dubbed himself "Osama bin London" was found guilty on Tuesday of encouraging his followers to murder non-believers and of running terrorist training camps in Britain.
Mohammed Hamid, 50, who came to England when he was five, was convicted along with three followers - Kibley da Costa, 25, Mohammed al-Figari, 45, and Kader Ahmed, 20 - who the jury found guilty of attending the training camps.
A fifth suspect, Atilla Ahmet, 43, the so-called emir of the group, who once boasted of being al Qaeda's top figure in Europe, admitted three charges of soliciting murder at the start of the complex four-month trial at Woolwich Crown Court.
The trial was closely watched in Britain as Hamid was accused of providing the inspiration for the men who tried to carry out botched suicide bombings on London's transport system on July 21, 2005, two weeks after 52 civilians were killed by four suicide bombers in a similar attack.
In a separate hearing linked to the trial, two other members of the group admitted attending a terrorist training camp.
Sentencing will take place at a later date.
"Hamid and Ahmet are dangerous people who between them carried out the recruitment, grooming and terrorist training of young men," said Peter Clarke, assistant commissioner for specialist operations at London's Metropolitan Police.
Prosecutors said Ahmet and Hamid prepared the men for jihad, or holy war, by organising terrorism training disguised as camping or paintballing trips in rural locations around Britain.
