Stuff.co.nz Lethal chemical found in NZ tourist's Thai hotel room Radio New Zealand Ms Carter, a British couple and a Thai tour guide fell severely ill while staying at the Downtown Inn in Chaing Mai in February. TV3's 60 Minutes programme travelled to Chaing Mai late last month to investigate, and scientist Ron McDowall, … Bedbug spray linked to Thai deaths TVNZ Sarah Carter's likely cause of death – insecticide 3News NZ Toxin linked to hotel deaths New Zealand Herald Stuff.co.nz