Thurston and Cowlitz County Sheriff’s officers Friday night made an arrest in the suspicious death of Clark E. Calquhoun, the man whose body was found in the Coweeman River late January.
Along with assistance from Cowlitz County Sheriff’s officers, 20-year-old Jeremy Brian Leininger of Castle Rock was arrested without incident on suspicion of first-degree murder and booked in the Thurston County Jail Friday night. Calquhoun’s body was found floating in the Coweeman river in a remote area 15 miles east of Kelso on Jan. 28. An autopsy later conducted by the Cowlitz County coroner’s office showed that Calquhoun died from gunshot wounds. His death was determined to be a homicide. Calquhoun was first reported missing to the Thurston County Sheriff’s office on Dec. 31, according to a press release. It was determined that Calquhoun disappeared from Rainier, Wash. on Dec. 28 under suspicious circumstances.
The Cowlitz County Sheriff’s office is declining to release any more details at this time, including the motive, location of the crime and whether or not further arrests are expected.
Calls to the Thurston County Sheriff’s Office were not returned Saturday.
A memorial was held for Clark Calquhoun Saturday at Littlerock Community Fellowship in Olympia.
A Facebook event page for the memorial described Calquhoun as “a beloved son, brother, father, uncle and friend.”