Jo Gardiner and her son Sam appeared on Race Across The World together (Picture: BBC/Studio Lambert) Race Across the World star Jo Gardiner has died aged 61 just one year after her son and co-star Sam was killed in a car crash. The mother-and-son duo appeared on the BBC travel show’s second series in 2020, racing across South America from Mexico City to Ushuaia in Argentina. Jo died following a ‘long and courageous battle with cancer’, her family said in a statement. ‘She lived fully, fiercely and never did anything by halves,’ they said. ‘She was blessed with countless friends,...