British pair found murdered on Thai resort.

“It was the first time this has happened on the island. I have never seen anything like this,” the staff member added, requesting anonymity.

No, it is not the first time.  See second article.

British tourists ‘murdered’ in Thailand: The sinister streak lurking beneath seeming paradise – News & Advice – Travel – The Independent.

Their deaths take to 13 the number of British visitors to Thailand murdered in the past five years in what the Foreign Office calls “vicious, unprovoked attacks by gangs”.