SPOKANE, Wash. --- The man Spokane County Sheriff’s Office announced they were searching for on Wednesday was found dead in his car on Thursday morning.

Family and friends of Nicholas R. Knowlton had reported him missing after he did not show up for work on Tuesday and was not at his home in North Spokane.

Thursday, SCSO said a citizen reported a vehicle matching the description of Knowlton’s was parked near W. Downriver Drive and W. Pettet in Spokane. Spokane Police officers found Knowlton dead in the car, SCSO said in a release.

SCSO said criminal activity is not suspected, but did not name a cause of death in the release.