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 (MP5537) and 9 other sources
Donald James Cavanaugh, 63, was last seen on March 1, 2005, in Ukiah, California. Originally from Illinois, Cavanaugh moved to California in 2004 to work on a horse ranch owned by his nephew, James DeNoyer, in Westport. The ranch was involved in both horse farming and marijuana cultivation. Tensions grew between Cavanaugh and DeNoyer due to financial and personal disagreements, as well as concerns about the treatment of the horses.

In December 2004, Cavanaugh was forcibly taken to San Francisco International Airport, allegedly at gunpoint by DeNoyer, and abandoned without money or transportation. After spending weeks with a friend, he eventually went to Ukiah's Plowshares, a shelter for the indigent, where he expressed a desire to return to the ranch to retrieve his belongings and dogs. This was the last time anyone saw him. He was reported missing in May 2005.

Cavanaugh's disappearance is linked to another individual, David Neily, who went missing in 2006 after working on the same ranch. DeNoyer is considered a person of interest in both cases, though no charges have been filed. Investigators suspect foul play, but both disappearances remain unsolved.

Last Seen: Mar 1, 2005

Possible Unidentified Matches (5)

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.

78%Possible
John Doe — San Francisco, California - unidentified case UP146034
John Doe — San Francisco, California
UP146034 • Found Jan 22, 2014
View case
Sex ✓Male
Age 100%Est. 68–82 vs 63 when missing
Race 100%White
Location 74%104 mi away, same state
TimingFound 9 years after last seen
Height 100%5'8" vs 5'8"
Weight 100%83–150 lb vs 140 lb
Hair 100%Gray vs Gray
77%Possible
John Doe — San Francisco, California
UP5965 • Found Dec 27, 2006
View case
Sex ✓Male
Age 79%Est. 40–60 vs 63 when missing
Race 100%White
Location 74%105 mi away, same state
TimingFound 22 months after last seen
Height 100%5'9" vs 5'8"
Weight 100%135 lb vs 140 lb
Hair 100%Gray vs Gray
77%Possible
John Doe — San Francisco, California - unidentified case UP146037
John Doe — San Francisco, California
UP146037 • Found Oct 10, 2014
View case
Sex ✓Male
Age 94%Est. 48–62 vs 63 when missing
Race 100%White
Location 74%106 mi away, same state
TimingFound 10 years after last seen
Height 100%5'5"–5'9" vs 5'8"
Weight 100%127 lb vs 140 lb
Hair 100%Gray vs Gray
77%Possible
John Doe — Rio Vista, California
UP147996 • Found Feb 12, 2006
View case
Sex ✓Male
Age 85%Est. 45–65 vs 63
Race 100%White
Location 74%107 mi away, same state
TimingFound 11 months after last seen
Height 100%5'4"–5'7" vs 5'8"
Weight 100%137 lb vs 140 lb
75%Possible
John Doe — San Francisco, California - unidentified case UP146018
John Doe — San Francisco, California
UP146018 • Found Jan 18, 2014
View case
Sex ✓Male
Age 94%Est. 48–62 vs 63 when missing
Race 100%White
Location 74%105 mi away, same state
TimingFound 9 years after last seen
Height 100%5'8" vs 5'8"
Weight 48%186 lb vs 140 lb
Hair 100%Gray vs Gray

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.