DEER PARK, Wash. -- Spokane Sheriff's major crimes detectives arrested two men around 8pm Friday in connection with the homicide of a man whose body was found in Deer Park earlier yesterday.

Christopher Devlin, 55, and Carl Hoskins, 56, were each booked into the Spokane County Jail on counts of First Degree Murder.

Autopsy of the victim is scheduled for Monday. However, detectives believe he is Daniel Heily, 52, of Chattaroy.

Devlin is charged with an earlier burglary and second-degree assault, and Heily was scheduled to testify against him in superior court this week as a victim and witness.

When Heily didn't show up for the trial, detectives issued a Material Witness warrant for his arrest Thursday afternoon.

Those same detectives were in Deer Park searching for him Friday morning when they spied his truck parked behind the liquor store and discovered his body inside the cab.

Exact cause of death will be determined at autopsy Monday, so detectives would only say that Heily died of homicidal violence.

Investigation into the killing was still underway late Friday as detectives continued efforts to contact other potential witnesses in the case.

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Spokane Co. Sheriff's detectives are investigating a homicide in Deer Park. A man's body was found in a truck behind the Rosauers store along South Fir Street around 11am Friday.

Al Lozano, KREM 2 News

Sheriff's deputies investigate a homicide behind the Rosauers store in Deer Park.

The body had been there for at least a few days. We're told the victim was a person of interest in another investigation and that deputies had been looking for him recently.

Deputies do not plan to release the name of the man until tomorrow-- when the medical examiner will perform an autopsy.

Investigators are waiting on a search warrant to look through the man's house.