A court in the southern province of Kien Giang on Friday sentenced a man to death and his wife to 20 years in prison for killing his brother and sister-in-law.
Danh Hau Phuong, 39, and Vo Thi Nga, 42, had reportedly abused the victims many times before.
On September 29 last year, Phuong anh Nga stopped the victims on their way home, attacking them with a hammer, a tree branch and stones. Danh Thanh Hau, 42, and his wife Trieu Thi Li Na, 31, succumbed to severe injuries, forensic experts said.
Phuong and Nga stayed at the crime scene and were arrested. They later confessed that the two couples had conflicts over land inheritance.
Neighbors said that the victims had been insulted and beaten many times before the final attack.
Each couple has three children. It is unclear at this point who will take care of them.