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Richard Plechner Missing Person Case

Last seen in Huntington Beach, California on Jul 25, 1975

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Victim Details

Nov 11, 2012

Jan 18, 2024

Richard

Plechner

82

31

73 inches

240 lbs

White / Caucasian

Male

Jul 25, 1975

Huntington Beach

California

Orange County

12617

Huntington Beach Police Department

Huntington Beach

California

,

04-019192

Huntington Beach Police Department

Brown

Hazel

Hazel

Oct 9, 2026


Area Last Seen:

Case Description

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Summary based on the NamUs case record (MP18056) and 5 other sources
Richard Frank Plechner, a 31-year-old man, was last seen on July 25, 1975, in Huntington Beach, California. Standing 6'1" and weighing 240 pounds, with brown hair and hazel eyes, Plechner disappeared without a trace, and very few details about the circumstances surrounding his disappearance are available. His case remains unresolved, with no significant leads or developments reported over the decades since he was last seen.

Authorities have listed his case as "endangered missing," and it has been documented in multiple missing person databases. The Huntington Beach Police Department continues to be the lead investigating agency in Plechner's case, but no substantial progress has been made. Investigators still encourage anyone with information that could help solve this long-standing mystery to come forward.

This case remains open, with hope that new information might eventually come to light.
Last Seen: Jul 25, 1975

Links to Additional Sources (5)

See any mistakes? Let us know!
  • Richard Frank Plechner | State of California - Department of Justice
  • Richard Frank Plechner - The Charley Project
  • 3535DMCA - Richard Frank Plechner - Doe Network
  • Plechner,Richard Frank July 25,1975 - Porchlight International for ...
  • Missing Person from NAMPN, 1970 to 1979 - Poli-con-deaths

    • 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.

    83%Moderate
    John Doe — Fullerton, California - unidentified case UP7662
    John Doe — Fullerton, California
    UP7662 • Found Nov 28, 1987
    View case
    Sex ✓Male
    Age 100%Est. 30–45 vs 31 when missing
    Race 100%White
    Location 99%15 mi away, same county
    TimingFound 12 years after last seen
    Height 100%6'0" vs 6'1"
    Weight 100%247 lb vs 240 lb
    Hair 100%Brown vs Brown
    Eyes 60%Brown vs Hazel
    82%Moderate
    John Doe — San Diego, California
    UP97876 • Found Oct 9, 1976
    View case
    Sex ✓Male
    Age 100%Est. 25–35 vs 31 when missing
    Race 100%White
    Location 80%81 mi away, same state
    TimingFound 15 months after last seen
    Height 100%6'0" vs 6'1"
    Weight 65%176 lb vs 240 lb
    Hair 100%Brown vs Brown
    Eyes 100%Hazel vs Hazel
    81%Moderate
    John Doe — Carson, California
    UP4138 • Found Dec 9, 1986
    View case
    Sex ✓Male
    Age 100%Est. 30–40 vs 31 when missing
    Race 100%White
    Location 97%20 mi away, same state
    TimingFound 11 years after last seen
    Height 100%6'0" vs 6'1"
    Weight 70%180 lb vs 240 lb
    Hair 100%Brown vs Brown
    81%Moderate
    John Doe — Industry, California - unidentified case UP4447
    John Doe — Industry, California
    UP4447 • Found Sep 27, 1976
    View case
    Sex ✓Male
    Age 100%Est. 30–40 vs 31 when missing
    Race 100%White
    Location 96%25 mi away, same state
    TimingFound 14 months after last seen
    Height 68%5'10" vs 6'1"
    Weight 60%171 lb vs 240 lb
    Hair 100%Brown vs Brown
    Eyes 60%Brown vs Hazel
    80%Moderate
    John Doe — Long Beach, California
    UP12439 • Found Sep 5, 1984
    View case
    Sex ✓Male
    Age 100%Est. 30–45 vs 31 when missing
    Race 100%White
    Location 99%14 mi away, same state
    TimingFound 9 years after last seen
    Height 84%5'11" vs 6'1"
    Weight 28%144 lb vs 240 lb
    Hair 100%Brown vs Brown
    Eyes 100%Hazel vs Hazel
    80%Moderate
    John Doe — California
    UP4270 • Found Jul 11, 1983
    View case
    Sex ✓Male
    Age 100%Est. 31–41 vs 31 when missing
    Race 100%White
    Location 95%31 mi away, same state
    TimingFound 8 years after last seen
    Height 84%6'3" vs 6'1"
    Weight 53%165 lb vs 240 lb
    Hair 100%Brown vs Brown
    Eyes 60%Brown vs Hazel
    79%Possible
    John Doe — North Shore (Salton Sea), California
    UP7214 • Found May 20, 1979
    View case
    Sex ✓Male
    Age 98%Est. 35–45 vs 31 when missing
    Race 100%White
    Location 71%120 mi away, same state
    TimingFound 4 years after last seen
    Height 100%6'0" vs 6'1"
    Weight 100%220 lb vs 240 lb
    Hair 100%Brown vs Brown
    Eyes 60%Brown vs Hazel
    78%Possible
    John Doe — Santa Monica, California
    UP104485 • Found Mar 27, 2023
    View case
    Sex ✓Male
    Age 100%Est. 40–55 vs 31 when missing
    Race 100%White
    Location 93%38 mi away, same state
    TimingFound 48 years after last seen
    Height 100%5'10"–6'0" vs 6'1"
    Weight 100%255–275 lb vs 240 lb
    Hair 60%Black vs Brown
    Eyes 60%Brown vs Hazel
    78%Possible
    John Doe — Littlerock, California
    UP57084 • Found Sep 20, 1980
    View case
    Sex ✓Male
    Age 88%Est. 23–30 vs 31 when missing
    Race 100%White
    Location 86%60 mi away, same state
    TimingFound 5 years after last seen
    Height 100%5'9"–6'0" vs 6'1"
    Hair 100%Brown vs Brown
    78%Possible
    John Doe — Camarillo, California
    UP15157 • Found Feb 17, 1976
    View case
    Sex ✓Male
    Age 88%Est. 20–30 vs 31
    Race 100%White
    Location 83%71 mi away, same state
    TimingFound 7 months after last seen
    Height 100%6'2" vs 6'1"

    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.

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    Forum Posts (3)

    Anyone else find it odd that Richard Plechner's disappearance hasn't had more media coverage over... ...Read More
    12/23/2024
    Does anyone else find it odd that there are virtually zero details about how Richard Plechner... ...Read More
    11/20/2023
    I find it incredibly puzzling how Richard Plechner's case remains unsolved after all these years.... ...Read More
    02/28/2023

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