The court heard that in several of the attacks one of the gang gained entry to the targeted shops purporting to be a customer. He then held the door open for his hammer and axe wielding accomplices who proceeded to smash the display cabinets and fill their bags with jewellery.
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Defence Minister Tobias Ellwood sais the UK is going through a "dark chapter" .
MPs held a minute's silence in the House of Commons and memorial services are planned to pay tribute to the victims of the attack.
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