Nguyen Huu Tinh, 18, is metalworker at Chinh’s family and joined in the family’s year-end party however, he did not leave the party for home.
On February 15, he killed 5 members in Chinh’s family including their 3 children aged 13, 11 and 6.
Tinh said Chinh’s wife had often shouted him therefore he wanted to kill her family.
The police is continuing its investigation into the case.
