Police in Ho Chi Minh City have proposed charges against six people who allegedly lured a wealthy businessman to a rented house to rob him and caused his death late last month.
Five of the suspects face charges of murder and robbery, while the only woman in the group, Phan Thi Ngoc Diem, has been accused of robbery.
Police said Nguyen Kim The Hien, one of the five men, called Diem, his ex-girlfriend, claiming that the businessman owed him some money.
Hien asked Diem to help lure the victim, 43-year old Nguyen Van Tho, to a house in District 12 which he and his accomplices had rented only a few days earlier. He promised to pay her VND10 million.
Diem, 25, then befriended the victim, asking him to meet her at the house on October 21.
When Tho entered the house, the five men were waiting for him.
Police said the gang tied him up, put rags into his mouth and covered his eyes, mouth and nose with duct tape. They then took his two mobile phones and VND230,000 (US$10).
Police said the gang also took a savings book with a value of VND1.9 billion ($85,000) and a credit card but did not withdraw any money.
The gang then fled the scene in the victim's car, which they later left on a road in Tan Binh District.
Tho's body was discovered at around 6 p.m. the same day. Police said he had been choked to death.
Police arrested three of the suspects in the An Giang Province and two others in Vinh Long Province October 23.
Diem was arrested the next day in Ho Chi Minh City.
In August, the five men had planned to kidnap the son of another businessman in the southern province of Tien Giang but failed, police said.