An inquest into the death of broadcaster Dr Michael Mosley has not been able to determine a cause, with the coroner instead recording an open conclusion.
The 67-year-old science journalist went missing in June after going for a walk on the Greek island of Symi.
His disappearance sparked a high-profile search effort by emergency services and his body was found after four days.
In written findings, senior coroner for Buckinghamshire Crispin Butler said the cause of Dr Mosley's death was "indeterminate" and "unascertainable" - and "was most likely attributable either to heatstroke (accidental) or non-identified pathological cause".