Metropolitan Superintendent Anthony Wagambie Jr said the incident occurred on Saturday night at West Taraka.
“There was a domestic dispute between a husband and wife. The husband badly assaulted the wife, resulting in the family members of the wife stepping in and attacking the husband, who is now the subject of murder,” Wagambie Jr said.
Wagambie Jr said the man, who was stabbed in the fight, was pronounced dead at the Angau Hospital.
“The suspect is a prison escapee,” said Lae’s police boss.