Dong Nai woman indicted for poisoning husband and three nephews with cyanide

TUESDAY, SEPTEMBER 23, 2025

Prosecutors in Dong Nai Province have indicted Nguyen Thị Hong Bich for murder and illegal possession and use of toxic substances, after accusing her of using cyanide to poison her husband and three nephews. The case, which left three family members dead and one seriously injured, has shocked residents.

The People’s Procuracy of the southern province of Dong Nai has issued its indictment against 40-year-old Nguyen Thi Hong Bich from Phuoc An Commune, on charges of murder, along with illegal possession, transport and use of toxic substances.

Bich, making a living with a small food joint specialised in Vietnamese noodles and rice dishes , is suspected of deliberately poisoning her husband and three nephews with cyanide, resulting in multiple deaths within her extended family, in a shocking case.

The infamous case first drew public attention in mid-2024 when Bich’s 19-year-old nephew, N.H.B.T., suddenly collapsed after taking what she claimed was herbal medicine for acne. Relatives rushed him to the hospital, where tests by the HCM City Institute of Public Health confirmed high levels of cyanide in his stomach. Doctors managed to save his life, though he was left with 23 % bodily harm.

The incident prompted his uncle, T.V.B., 46, to alert police, suspecting foul play. Investigators soon uncovered evidence pointing to deliberate poisoning.

During questioning, Bich admitted to spiking the capsule with cyanide due to a monetary dispute with the sister-in-law.

She also confessed to earlier poisonings that had not been linked to her at the time.

According to investigators, she had swapped her husband Nguyen Thoai Thanh The’s medication with cyanide capsules, leading to his death. She also admitted to lacing drinks with cyanide that killed her nephew, N.K.D. (8 years old, son of her younger sister) and her nephew, N.H.N. (13 years old, son of her elder brother).

Authorities said Bich initially bought cyanide online in 2022, claiming she intended to commit suicide because of her husband’s debts. Instead, she kept the substance hidden in the bathroom of her bedroom. Over time, conflicts with relatives allegedly led her to use the poison against her own family.

Prosecutors described her actions as “particularly dangerous to society,” marked by “cruelty and disregard for the law” and "seriously infringing upon the right to life," shocking public opinion and causing widespread anxiety in society, especially as the victims were all members of her own family.

The indictment notes that there is no evidence to prove she was responsible for the deaths of her father, Nguyen Van Hai, who died in late 2023, and her 15-year-old daughter, who passed away in March 2023.

The case has now been transferred to the provincial court for trial soon.

Viet Nam News

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