OR - Frank Wilson, 68, found slain near Mount Hood, 24 Sept 2015

[OkieGranny]

http://koin.com/2016/05/10/cold-case-murder-or-not-mystery-at-trillium-lake/

Wilson’s daughter Kim tells KOIN 6 News it appeared her father was having a mental breakdown before his death. She said he was distant and wanted to be left alone... One day he left for work and never came home. His body was found on September 24 inside his parked pickup at one of his favorite places: Trillium Lake...

State Medical Examiner Karen Gunson performed the autopsy on Wilson’s body. She recalled finding clues that led her to believe his death wasn’t a suicide after all. There was more than one gunshot wound and the location… was very atypical for a suicide”...

But there was another mysterious clue: Investigators found drops of blood outside the truck that formed a trail about 70 yards down the parking lot.

And a week after Wilson’s body was discovered, a weapon was found in the woods. Detectives learned it was Wilson’s own gun that was used in his death.

http://www.oregonlive.com/clackamascounty/index.ssf/2016/02/death_of_gresham_man_found_sho.html

A passer-by found Frank Wilson, 68, dead Sept. 24 parked in the Trillium Sno Park lot off U.S. 26. The area is remote with limited visitors and no video surveillance...

Data from a Fitbit, an electronic health and fitness tracker, that Wilson was wearing on his wrist showed that he likely died on Sept. 23, the affidavit said.

Investigators have interviewed transients who lived near the parking lot but none provided information leading to a suspect, Terway said. Authorities have, however, identified several "persons of interest" in the case who may have had some form of contact with Wilson before his death, he said.