In the investigation into the case of 6 bodies of Vietnamese and overseas Vietnamese found at a hotel in Ratchaprasong, Bangkok, Thailand, the autopsy results showed that the victims died from cyanide poisoning. One of the six deaths was suspected of using poison.
The preliminary autopsy results of the 6 Vietnamese bodies were announced by Chulalongkorn Hospital in Bangkok on July 17. Dr Chanchai Sittipunt, medical director at Chulalongkorn Hospital, said the presence of cyanide has provided enough evidence to conclude that this could be the cause of the six deaths.
Head of the forensic department at Chulalongkorn University of Medicine, Dr. Kornkiat Vongpaisarnsin, informed that cyanide was detected in the blood of all 6 people. The investigation showed no signs of force-induced injuries, further consolidating the assessment that poisoning was the cause of death.
Thai police have questioned Vietnamese tour guide Phan Ngoc Vu, 35, who knew Nguyen Thi Phuong Lan, one of the six victims.
The 3-year-old tour guide said that Ms. Nguyen Thi Phuong Lan asked to buy " snake medicine" (considered a remedy for joint pain) for 11,000 baht (305 USD). Phan Ngoc Vu asked another tour guide nicknamed " tiger tour guide" to help buy him. Thai police are currently searching for the person and checking security videos.
If Nguyen Thi Phuong Lan was the person who bought the poison, she would be another suspect in this poisoning case, said a Khaosod source.
Thai police also questioned Mr. Hung, ex-husband of Ms. Nguyen Thi Phuong Lan, 47 years old, for 5 hours. Mr. Hung said he was separated from Ms. Lan. He did not know what business his ex-wife was involved in. However, before his ex-wife passed away, he made a video call to her.
Witnessnesses said that Ms. Sherine Chong - a suspect in using cyanide - often introduced herself as a trustworthy American businesswoman in the Vietnamese business community to call for investment. Ten years ago, Sherine Chong was reported to San Francisco police for fraud related to her application for US citizenship, but the case was not prosecuted.