"Our son Arthur died on Tuesday evening. He was our beautiful, happy loving boy. We ask that we be given the privacy our family needs to grieve at this difficult time," Nick and Susie Cave said in a joint statement.
According to BBC News, Arthur Cave was "found with life-threatening injuries on the underpass of Ovingdean Gap" at 6 p.m. BST on July 14. He later died at the Royal Sussex County Hospital in Brighton.