http://www.police.gov.kh/archives/38762

On September 11 2016 at 8.43AM police experts received the news that at the Provincial Referral Hospital, which is located in Group2, Village 4, sangkat 4, Sihanoukville, a foreigner died.
The victim has been identified as:
MOORE​ William​ Joseph​, male, US national, born on April 16 1944, visa EI​ 01013257​ valid till July 24 2017.
Early reports say that the foreigner entered the hospital on September 9 2016 at 8.10PM to receive treatment.
In the morning of September 11 2016 the hospital contacted the Immigration Office to tell them that the foreigner died.
Currently police experts are looking for the place where the victim had been living.
The victim’s body has been laid out in the hospital awaiting a check by an expert doctor and the technical-scientific police to perform a biopsy.
Police experts informed the embassy and are waiting for a decision.

Read more here: http://www.koonkhmer.com/forum/viewtopic.php?f=5&t=2130