A decades-old mystery in Washington state’s Olympic National Park has finally been solved after advances in DNA technology helped to discover human remains found 26 years ago.
The remains, identified as those of Joseph Louis Serrao Jr., were found inside a sleeping bag in a tent in a remote area along the Sol Duc River drainage, according to the National Park Service. Also found were binoculars, a day hiker pack, a shoulder bag, a folding saw, a blanket, and winter gear, according to a statement from DNA Solves.
During this time, investigators concluded the deceased was likely a man between the ages of 30 and 50, who had been dead for several months, even years. Despite great efforts, including forensic examinations of items retrieved from the campsite, Serrao’s identity could not be determined.
The case went unresolved before investigators reexamined the evidence using advances in genetic genealogy. In 2024, forensic experts submitted a DNA sample from the remains for specialized testing, which aided in generating a generic profile and identifying possible relatives.
Authorities then collaborated with family members from various states to compare DNA samples, which ultimately helped confirm Serrao’s identity.
Serrao, born in 1960, had not been in contact with his family since 1998, was reported to be from Hawaii, and he had been in Washington state prior to his disappearance.
A CARVING OF THE NUMBERS ‘8647’ HAS APPEARED ON THE NATIONAL MALL
National Park Service officials credited the resolution of the case to the determination of law enforcement agencies, forensic scientists, and genetic genealogy experts.
Although Serrao’s identity has been established, authorities have not disclosed details about the circumstances surrounding his death.