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Syrian mother describes son's Sharia shooting

2 July 2013 Last updated at 18:27 BST

The mother of Mohammed Qataa has described how her son was killed by armed men who claimed a joke he had made was blasphemous.

The murder has come to symbolise the power of Islamist radicals in Syria's armed uprising.

Paul Wood visited Mohammed's family in Aleppo and heard that his mother had tried to stop the shooting.

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