Britain's main opposition Conservative Party leader David Cameron made his first public comments Saturday about the sudden death of his severely disabled son. The lawmaker's 6-year-old son Ivan died on Wednesday after being rushed to a hospital. He had cerebral palsy and Ohtahara syndrome, a rare and severe form of epilepsy. In an e-mail to party staff members and activists, Cameron said the loss had created a hole in his family "so big that words can't describe it."