David Cameron has opened up about the death of his six-year-old son from the rare genetic condition Ohtahara syndrome. The former PM, whose son Ivan passed away the year before he became Prime Minister in 2010, said over time he has learned to live with his grief. "Over time, happy memories come through, and you have dreams and memories of them being happy, and the smiles they gave you and the love that you shared with them," he said in an emotional radio interview. The Tory politician