Crime Solvers Central
CSC
254 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

Any updates on this case? Let us know!
William David Shannon, a 47-year-old man, was last seen on September 4, 1995, when he left his home in Salem, Oregon, to go on a camping and hiking trip in the Alpine Lakes Wilderness area near Skykomish, Washington. Shannon, who was 6'4" with brown hair and blue eyes, was known to have medical conditions that required medication, which he left behind when he disappeared. He was last seen wearing a t-shirt, long pants, a cap, and light-colored wire-frame glasses. He also carried a blue ...Read More
Last Seen: Sep 04, 1995

Links to Additional Sources (2)

See any mistakes? Let us know!

Victim Details

Mar 29, 2012

May 30, 2023

William

Shannon

76

47

76 inches

180 lbs

White / Caucasian

Male

In the late summer of 1995, a sense of quiet concern began to grow among the family and friends of William David Shannon. A 47-year-old man from Salem, Oregon, William had embarked on what was intended to be a refreshing camping and hiking trip, a solitary adventure into the natural beauty of Washington. He was last seen on September 4, 1995, in the scenic area of Skykomish, a small town nestled in the Cascade Mountains. William, a man who required medication for both mental and medical conditions, had unfortunately left these vital treatments behind. This decision, coupled with the inherent risks of a wilderness excursion, cast a shadow of worry over his departure. The days turned into weeks with no word, and the silence from the mountains grew heavier with each passing day, marking the beginning of a long and painful period of uncertainty for those who knew and loved him. The discovery of William's vehicle, a 1991 blue Pontiac 2+2, offered the first tangible clue in the search, yet it provided little comfort. The car was found abandoned at a National Forest trailhead leading to the picturesque and remote Lake Angeline, a location that confirmed his arrival in the wilderness but offered no insight into his subsequent movements. The King County Sheriff's Office was notified, and an extensive and arduous search operation was launched in the rugged terrain surrounding the lake. Search and rescue teams, armed with hope and expertise, scoured the dense forests, steep inclines, and winding trails, looking for any sign of the missing hiker. Despite their exhaustive efforts, the vast and unforgiving landscape yielded no trace of William, and the search was ultimately unproductive, leaving a void of unanswered questions and deepening the mystery of his disappearance. The circumstances surrounding William Shannon's case remain shrouded in ambiguity. He vanished leaving behind his vehicle and essential medication, suggesting a departure that was perhaps not fully planned or considered. At the time he went missing, he was described as a white male, standing at 6 feet 4 inches tall and weighing approximately 180 pounds, with brown hair and blue eyes. He was believed to be wearing a t-shirt, long pants, and a baseball or golf-style cap, and he may have had on light-colored wire-frame glasses. He was also carrying a blue Jansport backpack, a common accessory for any hiker, yet one that in his case, became a poignant detail in a story without an ending. The official investigation, led by the King County Sheriff's Office, has remained open over the years, a silent testament to a life interrupted and a family left waiting. The case serves as a somber reminder of the fragility of life and the enduring pain of not knowing the fate of a loved one who seemingly walked into the wilderness and never returned.

Sep 04, 1995

Skykomish

Washington

King County

No

11596

King County Sheriff's Office

Seattle

Washington

King County

98104

Janet Gregory

Project Program Mgr 3

516 3rd Avenue Room W-150, Washington

2062964155

County

Law Enforcement

95-317203

1995-09-25

King County Sheriff's Office

Brown

Blue

Blue

06/24/2026


Area Last Seen: