Durham County Council has apologised to traders who lost thousands of pounds because of Lumiere, the light festival which attracted tens of thousands of people.
Shops and businesses on Elvet Bridge say customers were diverted away from the area at one of their busiest times of year.
Lucy Taylor reports.
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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.
Sunderland International Airshow got underway along the city’s seafront at Roker and Seaburn with a major flying programme from the RAF