On a late summer day in 1986, Robert Donald Linton, a 62-year-old Caucasian male, and his wife Dagmar, embarked on what should have been a scenic excursion to Mount Baker, Washington. The retired couple from Stockton, California, were enjoying their golden years, traveling in their travel trailer. They had made a stop at the Naco West Campground in Brinnon, situated on the picturesque Hood Canal.
On August 22nd, they unhitched their trailer, intending to take a day trip in their gray and white 1982 Dodge Ram 1500 pickup truck. They drove off from the campground and were never seen again.
The first sign that something was amiss was their failure to return to their trailer. The alarm was raised, and an investigation into their sudden disappearance began. A significant break in the case came when their pickup truck was discovered abandoned in a parking lot at the Seattle-Tacoma International Airport on the very same day they went missing. A forensic examination of the vehicle yielded grim evidence; blood and hair were found inside, strongly suggesting that the couple had met with foul play. The discovery shifted the focus of the investigation from a missing persons case to a presumed homicide.
As investigators delved deeper, a prime suspect emerged: Charles Thurman Sinclair, a man believed to be a prolific serial killer responsible for the deaths of approximately thirteen people, many of whom were coin dealers. The evidence connecting Sinclair to the Lintons' disappearance was compelling. His handwriting was a match for the signatures on credit card receipts for purchases made with the Lintons' cards after they vanished. Furthermore, some of the items bought with those credit cards were later found in a storage shed belonging to Sinclair.
Despite the strong circumstantial evidence linking Sinclair to the crime, he was never formally charged in connection with the disappearance and presumed murders of Robert and Dagmar Linton. In August of 1990, Sinclair was arrested in Alaska on unrelated charges. However, justice in the Linton case would remain elusive as Sinclair died in October of that same year, before he could be brought to trial for any of his suspected crimes. The bodies of Robert and Dagmar Linton have never been recovered, and with the death of the primary suspect, the case grew cold. To this day, the disappearance of the Lintons remains an unsolved mystery, a lingering story of a retired couple who set out for a day of sightseeing and vanished into the shadows of a dark and unresolved crime.
