KENTWOOD, Mich. — Investigators say a missing person investigation has turned into a double-homicide investigation.

Police received a call Tuesday morning from a business who said a man came in and asked them to call police to turn himself in for killing two of his friends.

One of those friends was 34-year-old David Isner, who had been reported missing on Monday after his family had not heard from him for several days.

The other is 63-year-old Ed Fuller, whose body was also found Tuesday.

Authorities haven’t yet named the suspect or said why they believe he killed Fuller and Isner.

Before receiving the 911 call, police had found Isner’s vehicle at a church near his Kentwood home but didn’t find him. Detectives then went to his home to search for evidence.

When they went inside, officers found what Kentwood Police Chief Richard Roberts described as an “alarming amount of blood” which indicated a very violent struggle.

At that point, police began searching for Isner’s roommate. On Tuesday, they found his vehicle in a mobile home park near S Division Avenue and 76th Street in Byron Township.

Shortly after finding his vehicle, police received the 911 call leading to the suspect’s arrest. Upon taking him into custody, they were able to learn where both bodies were at.

Isner was found in an “open area” in Walker, and police found Fuller at a separate scene at a home on Monticello Street SW.

