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

Case Description

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Summary based on 6 sources
David Charles Holmes, a 40-year-old man, was last seen on July 11, 1983, in Contra Costa, California. His case is classified as one of endangered missing persons. Holmes is a dependent adult, a factor that elevates concern for his welfare. Since the day of his disappearance, he has not been heard from again.

Physical descriptions of Holmes detail him as a white male with blond hair and blue eyes. At the time he went missing, he stood at 6'2" and weighed approximately 160 pounds. He was born on December 30, 1942.

The circumstances surrounding Holmes's disappearance remain largely unknown, with few details available in public records. The last confirmed location for him was in Pittsburg, a city within Contra Costa County. The Contra Costa County Sheriff's Department is the investigating agency for his case. Despite the passage of several decades, his case remains unresolved.

Last Seen: Jul 11, 1983

Possible Unidentified Matches (3)

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.

75%Possible
John Doe — Long Beach, California
UP12439 • Found Sep 5, 1984
View case
Sex ✓Male
Age 100%Est. 30–45 vs 40 when missing
Race 100%White
Location 75%Same state
TimingFound 14 months after last seen
Weight 100%144 lb vs 160 lb
75%Possible
John Doe — California
UP4259 • Found Dec 31, 1983
View case
Sex ✓Male
Age 100%Est. 30–45 vs 40
Race 100%White
Location 75%Same state
TimingFound 6 months after last seen
Weight 100%160 lb vs 160 lb
75%Possible
John Doe — California
UP4270 • Found Jul 11, 1983
View case
Sex ✓Male
Age 100%Est. 31–41 vs 40
Race 100%White
Location 75%Same state
TimingFound same day as last seen
Weight 100%165 lb vs 160 lb

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.