CCTV captures last sighting of missing Dr Michael Mosley

Missing Dr Michael Mosley may have 'collapsed from heat exhaustion' on walk through 'treacherous' terrain, Greek mayor claims - as search for Mail health guru enters dangerous cave called 'The Abyss'
Last sighting of missing Dr Michael Mosley: CCTV shows Mail health guru walking with an umbrella just half an hour after he left his wife at beach on Greek island - as sniffer dogs and divers join search in 38C...