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

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP43344) and 1 other source
In the late summer of 1981, a sense of unease settled over the families of four men who had embarked on a flight in the vast Alaskan wilderness. Among them was 34-year-old Robert 'Bob' Hawk, a married man with two distinctive chipped front teeth. On August 17, 1981, he, along with Kenneth Fischer, Larry Larson, and William Tiedeman, boarded a red and white Cessna 180, tail number N3424Y, in Anchorage, Alaska. Their destination was the small village of Grayling, a journey that would take them over the rugged and often treacherous terrain of the Rainy Pass. The group was expected to arrive, but as hours turned into an agonizing wait, it became clear that something had gone wrong. The plane, and the four men aboard, had vanished.

The disappearance of the Cessna and its occupants triggered an extensive search and rescue operation. The Alaska State Troopers, along with other agencies, scoured the remote and unforgiving landscape along the plane's intended flight path. The terrain, characterized by dense forests, mountainous regions, and unpredictable weather, presented immense challenges to the search crews. Despite their exhaustive efforts, no trace of the aircraft, Robert Hawk, Kenneth Fischer, Larry Larson, or William Tiedeman was ever discovered. The complete and utter lack of wreckage, distress signals, or any other evidence created a baffling mystery that has endured for decades. The families of the missing men were left in a state of perpetual uncertainty, holding on to a sliver of hope in the face of a vast and silent wilderness.

The case of Robert Hawk and his companions is a somber reminder of the inherent dangers of aviation in a state known for its raw and untamed beauty. The absence of any definitive evidence has left the door open to speculation, but the most probable and heartbreaking conclusion is that the Cessna 180 met with a sudden and catastrophic event, leaving no opportunity for a distress call and concealing the wreckage in an area too remote to be found. The official investigation by the Alaska State Troopers remains open, a cold case file filled with the details of the flight, the men on board, and the fruitless search. The disappearance of these four men is a story of loss and the enduring pain of not knowing, a stark illustration of how quickly and completely the Alaskan wilderness can claim those who venture into its depths.

Last Seen: Aug 17, 1981

Links to Additional Sources (1)

See any mistakes? Let us know!

Possible Unidentified Matches (1)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

77%Possible
John Doe — Anchorage, Alaska - unidentified case UP14060
John Doe — Anchorage, Alaska
UP14060 • Found Aug 23, 1989
View case
Sex ✓Male
Age 85%Est. 20–40 vs 34 when missing
Location 100%Same area, same county
TimingFound 8 years after last seen
Height 100%6'1"–6'4" vs 6'2"
Weight 100%180–185 lb vs 195 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.