Q Radio News
People will gather in Derry-Londonderry this afternoon to commemorate Bloody Sunday 46 years on.
The crowds will join at the city's Creggan Shops to retrace the steps of the 1972 anti-internment march which ended in bloodshed.
Kate Nash's 19-year-old brother William died when British soldiers opened fire on the crowd.
She told Q Radio of the shock she and her father experienced when they went to the hospital afterwards.