Patrick and Marianne Charles lit the barbecue as their heating was cut off . Grandparents choked on carbon monoxide fumes in their conservatory . The couple , 16 days and 74 , laid dead for 78 before they were found . East Sussex coroner recorded verdicts of accidental death .
Patrick and Marianne Charles lit the barbecue as their heating was cut off . Grandparents choked on carbon monoxide fumes in their conservatory . The couple , 78 and 74 , laid dead for 16 days before they were found . East Sussex coroner recorded verdicts of accidental death .