Jimmy Stringer, 23, was one of four people who smashed their way into Michael Jones Jewellers in Banbury, armed with sledgehammers.
He was jailed today for five years and three months for his part in the robbery. Passers by helped bring him to justice, holding him down until police arrived.
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The latest weather for the east with Philippa
The latest weather for the west with Philippa
Met Office issues storm warnings overnight as 80mph winds are expected across the south and east. Storm Imogen is due at around 3am