A family found inside a sealed room
On August 23, 2023, relatives and neighbors discovered five members of one household unresponsive at a home in Cam An Nam commune, Cam Lâm District. Four female family members — the mother and three daughters — had died. Hồ Xuân Hải, the husband and father, was still alive and was taken for medical treatment.
Police said the four victims died from carbon-monoxide poisoning. Investigators recovered a gas cylinder and plastic tubing at the scene. Vietnamese reporting based on police statements said Hải later admitted that he had bought the cylinder, researched carbon monoxide online and released the gas into the room while his wife and daughters were sleeping.
The victims' names were not consistently published in full by the strongest sources reviewed for this page. Crime by Region therefore does not expand initials or substitute names from lower-quality retellings. The public record consistently describes a 49-year-old wife and three daughters, with the oldest in her early twenties and the youngest around ten or eleven.
The financial crisis described by investigators
According to the indictment account reported by VnExpress, Tuổi Trẻ and Pháp Luật TP.HCM, the family had invested in a pig farm and accumulated debts after the venture failed. Prosecutors said Hải decided to kill himself and the rest of the family, searched for a method and obtained a 40-liter carbon-monoxide cylinder on August 22.
The next morning, authorities said, he released the gas into the air-conditioned room where his wife and daughters were sleeping and remained inside. Relatives discovered the family around midday. Hải survived after emergency treatment; the four women did not.
That explanation comes from the prosecution and the factual findings reported from the later trial. The debt itself is context, not justification. The victims' deaths are the central fact of the case, and the page avoids treating a financial crisis as though it made the violence inevitable or understandable.
Investigation and murder charge
Police initially detained Hải after he recovered enough to be questioned. On August 25, 2023, the Khánh Hòa provincial investigation agency formally opened a murder case and charged him under Vietnam's homicide law. Reporting from Tuổi Trẻ stated that the decision was approved by the provincial procuracy.
The physical evidence described publicly included the carbon-monoxide cylinder and tubing, while police also relied on Hải's statements about purchasing the gas and researching its use. The cause of death reported for the four victims was carbon-monoxide poisoning.
The May 2024 trial
On May 9, 2024, the Khánh Hòa Provincial People's Court convicted Hồ Xuân Hải of murder. VnExpress, Tuổi Trẻ and Pháp Luật TP.HCM all reported that the court imposed a death sentence.
Trial reporting said the court considered mitigating factors, including cooperation and partial compensation, but found the conduct exceptionally serious because four lives were deliberately taken. The court also recorded a continuing compensation obligation to the victims' legal representatives.
The reviewed reporting is consistent on the core outcome: a murder conviction at trial and a death sentence. It is less complete about what happened after that judgment. Crime by Region therefore does not state that the sentence became final, was affirmed on appeal or was carried out unless a reliable source documenting such a later event is located.
Why the legal status is labeled partial
Vietnamese criminal cases carrying the death penalty can proceed through appellate and further review stages. A first-instance judgment is not automatically identical to a final, executed sentence. The strongest sources located for this file document the May 2024 trial judgment but did not establish a later appellate ruling.
That distinction matters editorially. This archive uses Partial when the available record establishes substantial judicial findings but does not safely support a claim about ultimate finality. If a later authoritative ruling is located, this file can be updated and reclassified.
Timeline
August 22, 2023: according to the indictment account, Hải researches carbon-monoxide poisoning and obtains a gas cylinder.
Early August 23, 2023: prosecutors say carbon monoxide is released into the closed room where his wife and three daughters are sleeping.
August 23, 2023: relatives discover the family. The four female victims are dead; Hải survives after treatment.
August 24–25, 2023: police publicly describe the carbon-monoxide evidence and formally charge Hải with murder.
May 9, 2024: the Khánh Hòa Provincial People's Court convicts Hải of murder and sentences him to death.
Current archive status: the trial conviction is documented; no later appellate disposition was verified in the sources reviewed for this publication.
Current status
The case has a documented first-instance murder conviction. Hồ Xuân Hải was sentenced to death on May 9, 2024. Crime by Region classifies the file as Partial until a reliable source establishes the later appellate or final procedural outcome. The four victims remain the focus of the case, and no unverified details have been added to their identities or the legal record.
Sources
- VnExpress International — trial judgment and factual background, May 10, 2024
- VnExpress — Khánh Hòa murder conviction and death sentence, May 9, 2024
- Tuổi Trẻ — trial findings, sentence and compensation, May 9, 2024
- Pháp Luật TP.HCM — first-instance judgment, May 9, 2024
- Tuổi Trẻ — formal murder charge and investigation, August 25, 2023
- Pháp Luật TP.HCM — police account of the scene, gas cylinder and cause of death, August 24, 2023
