Lookman Shekoni, then 24, pleaded guilty at Harrow Crown Court to robbery, after he was caught by passers-by at the scene of the raid, in which up to £400,000 worth of jewellery was stolen.
On Monday, September 7, 2015 just after 2pm, four mopeds, each bearing two riders wearing crash helmets, pulled up on the pavement outside the Jewellery Gallery shop in Kingsbury Road.
Three of the suspects stayed with the vehicles, while one stood outside the shop armed with an axe to scare off anyone who might try to intervene.
The rest of the suspects forced their way inside the shop with a large metal ram and used hammers and axes to threaten staff members.
They then smashed all the displays and removed the Indian and Iranian jewellery inside, placing it in large laundry bags, before feeling the shop and climbing back onto the mopeds.
By this stage a large crowd of people had gathered outside and members of the public started to close in on the suspects, throwing various objects at them to try to knock them off the mopeds.
As the suspects made off up Kingsbury Road, one of the mopeds was surrounded and the riders were pushed to the ground by the crowd.
The passenger – Shekoni – punched a man in the face but was detained by the crowd until police arrived and arrested him.
A significant amount of jewellery was recovered from the scene and handed back to the shop owner, but items valued at between £300,000 and £400,000 remain outstanding, with £50,000 worth of damage caused to the premises during the raid.
Shekoni, who also pleaded guilty to a night-time burglary at an opticians in St John’s Wood High Street where £20,000 of designer glasses were stolen, was sentenced on Monday, November 2 2015.