Wahbi Mohammed, 25, of Tavistock Crescent, west London, was once a familiar sight on the streets of Notting Hill wearing white traditional robes and handing out Islamic literature with his brother Ramzi Mohammed, who later tried to explode a home-made bomb at Oval Tube station.

Mohammed was at his brother's home in Dalgarno Gardens, in north Kensington, on the morning of July 21, as the bombers prepared themselves. He took away the video camera they used to make their suicide videos and his brother’s suicide letter.

Counter-terror police believe that he would have been responsible for distributing the disturbing martyrdom messages if the terrorists had been successful.

The Somalia-born accomplice was accused of assisting his brother after the attack by taking him food and a new mobile phone as he hid with fellow plotter Mukhtar Said Ibrahim. The phone enabled Ramzi to get back in touch with another plotter, Hussain Osman.

The prosecution said that Mohammed was extremely close to the bomb plot as it reached its conclusion and in the panicked aftermath. The jury agreed and found him guilty of having prior knowledge of the plans to cause carnage in London.

Abdul Sherif, 30, of Brixton, looks strikingly similar to his brother, the July 21 bomber Hussain Osman - a fact which enabled Osman to flee the country using his brother's passport.

Somalia-born Sherif was seen celebrating in a pub after the London bombings of July 7, and openly predicting that there would be more. A pub landlord told of a text message that Sherif showed him which read: “It has to be like this.”

The prosecution later produced telephone record evidence that linked Sherif with mobile phones connected to his fugitive brother in both the UK and Italy.

Siraj Yassin Abdullah Ali, 32, of New Southgate, north London, was once fostered by the same family as July 21 bombmaker Yassin Omar and the two formed a close bond. At the time of the July 21 attacks Ali lived in the flat directly above Omar’s eighth-floor bomb factory.

He was also close to the July 21 ringleader Muktar Said Ibrahim, who had a key to Ali's flat and often stayed there along with other members of the July 21 plot when the fumes in Omar’s bomb factory became overwhelming.

Ali was incriminated in part by his role in the massive clear up operation of Omar’s flat. Police found bulging communal bins filled with 186 empty bottles of hydrogen peroxide, a key ingredient in the bombs, plus a bottle containing traces of sulphuric acid, light bulbs, rubber gloves and Pakistani banknotes.

There were also personal documents linked to Ibrahim including letters, a National Insurance card and a Co-op bank card.

Times Recommends

• Shrinking violet Gordon turns into raging bull
• Eddie Izzard: 'I keep thinking if I do all these things she'll come back'
• Is sex for the disabled the last taboo?