YANGON, Myanmar – International media outlets in the United States and the United Kingdom are closely following the unfolding investigation into the death of a U.S. diplomat found dead in a hotel room in Yangon, Myanmar, in a case that has shocked diplomatic circles and triggered high-level legal scrutiny. Daniel Riva, a 43-year-old American diplomat specializing in transnational organized crime, was discovered dead inside a room at the Sakura Residence & Hotel on May 11. Authorities reported that he had sustained stab wounds to the head and neck. The hotel, located about one mile from the U.S. Embassy in Yangon, is known to frequently host diplomatic personnel and international staff.
Shortly after the incident, Myanmar authorities arrested his former Thai wife, identified as Phavinee Supasiriwisan, on suspicion of murder. According to reports cited by U.S. and British media, she remains in custody as legal proceedings continue. The New York Post reported on June 26 that Riva was originally from New York and had previously served in Suriname and Timor-Leste before being posted to Myanmar. A colleague, Fausto De Guzman, paid tribute on social media, describing him as a dedicated diplomat who lived life fully and enjoyed motorcycle travel in his personal time.
Further reporting from the UK’s Daily Mail indicated that Phavinee appeared in a Yangon court on June 23 for preliminary hearings linked to immigration-related charges connected to the broader investigation. At least three witnesses, including immigration officials, have reportedly testified so far in the Kamayut court proceedings. Authorities in Myanmar have not yet released a final determination on motive or circumstances surrounding the death, and the investigation remains ongoing. If convicted of murder under Myanmar law, the accused could face a lengthy prison sentence or even the death penalty.
Phavinee, a Bangkok native, is reported to be a graduate of the prestigious Le Cordon Bleu culinary school. She previously ran an online cooking and baking channel and operated small-scale food-related business activities from home. Reports indicate that the couple married in 2018, although details regarding their separation remain unclear. Thailand’s Ministry of Foreign Affairs has confirmed that consular assistance has been provided to the Thai national involved, while declining to comment further on the ongoing legal proceedings. The U.S. State Department has also confirmed the diplomat’s death but has not released additional official details. As the case moves through Myanmar’s legal system, it continues to attract international attention due to the diplomatic profile of the victim and the cross-border legal implications involved.
