A 37-year-old Milan man was shot to death by his 68-year-old father, who then called 911 and turned himself in Thursday night, police said.

The 37-year-old has been identified as Gregory Paul Olds.

Milan police went to a residence on West Miller Street in Milan at 9:10 p.m. after receiving a call from a man who said he just shot his son, according to police.

While emergency responders were en route, the man told dispatchers he was securing the firearm inside the house and would be outside when authorities arrived.

The 68-year-old was waiting outside when police got to the residence and was arrested without incident. Olds was discovered inside the home dead from a single gunshot wound.

The weapon was also located inside the house. There was no one else in the home at the time of the incident, police said. Police believe the two men were arguing prior to the shooting. The case remains under investigation.

The 68-year-old is currently being held at the Washtenaw County Jail.

Milan police sought and obtained a search warrant for the residence. Michigan State Police Evidence Technicians were requested and processed the scene.

An autopsy is pending. The case is being reviewed by prosecutors, and the 68-year-old is expected to be arraigned on Saturday.

John Counts covers crime for The Ann Arbor News. He can be reached at johncounts@mlive.com or you can follow him on Twitter. Find all Washtenaw County crime stories here.