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

Case Description

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Summary based on the NamUs case record (MP56107) and 3 other sources
Duane Stuart Masher, a 55-year-old aeronautics engineer from Coto de Caza, California, was last seen on August 10, 2017. His family reported him missing after failing to contact him. On August 15, 2017, his vehicle, a 2013 Kia Soul, was found abandoned at the Redwoods River Resort in Leggett, California, about 500 miles from his home. Duane had not been a guest at the resort, and there was no sign of him near the area. The discovery of his car at the resort raised concerns, as it had reportedly been parked there for several days.

Further investigation revealed troubling details. Inside Duane’s home, his son found what appeared to be a smashed cell phone and damaged hard drives that had been placed in the oven and burned, rendering them unusable. These strange findings have led to speculation that Duane may have been fleeing from something or someone, or that he was attempting to hide sensitive information. Despite these clues, no additional evidence has surfaced, and Duane's whereabouts remain unknown.

Authorities and his family continue to seek information, and his case remains unsolved.

Last Seen: Aug 10, 2017

Possible Unidentified Matches (10)

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.

82%Moderate
John Doe — Los Angeles, California
UP104480 • Found Mar 22, 2023
View case
Sex ✓Male
Age 100%Est. 55–70 vs 55 when missing
Race 100%White
Location 89%49 mi away, same state
TimingFound 6 years after last seen
Height 84%5'6"–5'9" vs 5'11"
Weight 93%180–190 lb vs 220 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
80%Moderate
John Doe — Menifee, California
UP100667 • Found Sep 9, 2021
View case
Sex ✓Male
Age 100%Est. 58–72 vs 55 when missing
Race 100%White
Location 96%24 mi away, same state
TimingFound 4 years after last seen
Height 84%5'9" vs 5'11"
Weight 52%151 lb vs 220 lb
Hair 40%Gray vs Brown
Eyes 100%Blue vs Blue
80%Moderate
John Doe — Los Angeles, California - unidentified case UP17010
John Doe — Los Angeles, California
UP17010 • Found Jul 28, 2017
View case
Sex ✓Male
Age 100%Est. 50–65 vs 55
Race 100%White
Location 88%54 mi away, same state
TimingFound same day as last seen
Height 52%5'7" vs 5'11"
Weight 85%182 lb vs 220 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
79%Possible
John Doe — Los Angeles, California - unidentified case UP78168
John Doe — Los Angeles, California
UP78168 • Found Mar 19, 2020
View case
Sex ✓Male
Age 85%Est. 45–65 vs 55 when missing
Race 100%White
Location 88%53 mi away, same state
TimingFound 3 years after last seen
Height 100%5'5"–5'10" vs 5'11"
Weight 64%140–160 lb vs 220 lb
Hair 40%Gray vs Brown
Eyes 100%Blue vs Blue
79%Possible
John Doe — Los Angeles, California - unidentified case UP55211
John Doe — Los Angeles, California
UP55211 • Found Jan 16, 2019
View case
Sex ✓Male
Age 100%Est. 50–65 vs 55 when missing
Race 100%White
Location 89%51 mi away, same state
TimingFound 17 months after last seen
Height 68%5'8" vs 5'11"
Weight 100%198 lb vs 220 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — Santa Monica, California
UP104485 • Found Mar 27, 2023
View case
Sex ✓Male
Age 100%Est. 40–55 vs 55 when missing
Race 100%White
Location 87%59 mi away, same state
TimingFound 6 years after last seen
Height 100%5'10"–6'0" vs 5'11"
Weight 88%255–275 lb vs 220 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — San Bernardino, California - unidentified case UP88020
John Doe — San Bernardino, California
UP88020 • Found Feb 9, 2021
View case
Sex ✓Male
Age 85%Est. 50–70 vs 55 when missing
Race 100%White
Location 92%38 mi away, same state
TimingFound 4 years after last seen
Height 100%6'0" vs 5'11"
Weight 100%206 lb vs 220 lb
Hair 40%Gray vs Brown
Eyes 30%Hazel vs Blue
78%Possible
John Doe — San Diego, California - unidentified case UP133256
John Doe — San Diego, California
UP133256 • Found Nov 3, 2024
View case
Sex ✓Male
Age 100%Est. 50–60 vs 55 when missing
Race 100%White
Location 85%63 mi away, same state
TimingFound 7 years after last seen
Height 84%5'9" vs 5'11"
Weight 24%129 lb vs 220 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
76%Possible
John Doe — Colton, California - unidentified case UP54758
John Doe — Colton, California
UP54758 • Found Jan 6, 2018
View case
Sex ✓Male
Age 86%Est. 58–72 vs 55
Race 100%White
Location 93%37 mi away, same state
TimingFound 5 months after last seen
Hair 100%Brown vs Brown
75%Possible
John Doe — San Diego, California - unidentified case UP122559
John Doe — San Diego, California
UP122559 • Found May 13, 2024
View case
Sex ✓Male
Age 100%Est. 60–65 vs 55 when missing
Race 100%White
Location 85%65 mi away, same state
TimingFound 7 years after last seen
Height 68%5'8" vs 5'11"
Weight 37%139 lb vs 220 lb
Hair 100%Brown vs Brown
Eyes 30%Hazel 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.