Army Reservists, who can trace the history of their unit back to the First World War, have been marching through the streets of Darlington as they exercise the Freedom of the Borough.
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Sandiford, a former legal secretary originally from Redcar, was convicted of drug smuggling offences and sentenced to death in 2013.
Durham Crown Court heard that one of the male victims suffered a triple-fractured jaw, while left lying in the gutter, unconscious.