We WhatsApp our murdered son every morning: Grief-stricken parents of boy, 17, stabbed to death at end-of-term party on grounds of £1.5m country mansion tell how they leave the light on for him at night and can't bear to see his name drop down their chats | Daily Mail Online

Charlie Cosser was stabbed multiple times in July at a party in the grounds of a £1.5 million country mansion farmhouse in the village of Warnham, West Sussex.