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Diane Pierce Missing Person Case

Last seen in Palm Springs, California on Feb 15, 2006

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Victim Details

Dec 10, 2016

Oct 3, 2019

Diane

Pierce

65

45

61 inches

190 lbs

White / Caucasian

Female

Feb 15, 2006

Palm Springs

California

Riverside County

Unknown

3074

Palm Springs Police Department

Palm Springs

California

Riverside County

92262

Mario Kasal

Detective

200 South Civic Drive, California

7603238116

Local

Law Enforcement

06-0480022

Palm Springs Police Department

Brown

Brown

Brown

Oct 17, 2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP36384) and 3 other sources
Diane Christine Pierce, a 45-year-old woman, went missing on February 15, 2006, in Palm Springs, California. Diane was last seen at the Spa Resort Casino, where she had gone with her boyfriend. After returning to separate hotel rooms around 2:30 a.m., Diane was never heard from again. The following day, her car was found abandoned in a rural area along Highway 74, near Sugarloaf Mountain, but there was no sign of Diane at the scene.

Diane suffered from both diabetes, requiring insulin, and depression, making her disappearance even more concerning, as she would not survive long without her medication. She was last seen wearing a green halter top and black jeans, and had notable tattoos, including her name and a Mickey Mouse character on her left leg. Despite an investigation, her case remains unsolved, and her whereabouts are still unknown.
Last Seen: Feb 15, 2006

Links to Additional Sources (3)

See any mistakes? Let us know!
  • Diane Christine Pierce | State of California - Department of Justice
  • Diane Christine Pierce - The Charley Project
  • 3693DFCA - Diane Christine Pierce - Doe Network

    • Possible Unidentified Matches (9)

    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.

    81%Moderate
    Jane Doe — Corona, California - unidentified case UP6964
    Jane Doe — Corona, California
    UP6964 • Found Sep 20, 2009
    View case
    Sex ✓Female
    Age 100%Est. 35–50 vs 45 when missing
    Race 100%White
    Location 87%57 mi away, same county
    TimingFound 4 years after last seen
    Height 100%5'1" vs 5'1"
    Weight 32%117 lb vs 190 lb
    Hair 100%Brown vs Brown
    Eyes 100%Brown vs Brown
    78%Possible
    Jane Doe — Los Angeles, California - unidentified case UP94448
    Jane Doe — Los Angeles, California
    UP94448 • Found Jun 18, 2022
    View case
    Sex ✓Female
    Age 100%Est. 50–60 vs 45 when missing
    Race 100%White
    Location 76%97 mi away, same state
    TimingFound 16 years after last seen
    Height 100%5'2"–5'4" vs 5'1"
    Weight 78%140–150 lb vs 190 lb
    Hair 100%Brown vs Brown
    Eyes 100%Brown vs Brown
    77%Possible
    Jane Doe — Arleta, California - unidentified case UP104482
    Jane Doe — Arleta, California
    UP104482 • Found Apr 11, 2023
    View case
    Sex ✓Female
    Age 100%Est. 35–50 vs 45 when missing
    Race 100%White
    Location 73%112 mi away, same state
    TimingFound 17 years after last seen
    Height 100%5'2"–5'5" vs 5'1"
    Weight 73%125–145 lb vs 190 lb
    Hair 100%Brown vs Brown
    Eyes 100%Brown vs Brown
    77%Possible
    Jane Doe — Van Nuys, California - unidentified case UP62395
    Jane Doe — Van Nuys, California
    UP62395 • Found Oct 30, 2010
    View case
    Sex ✓Female
    Age 98%Est. 50–65 vs 45 when missing
    Race 100%White
    Location 73%112 mi away, same state
    TimingFound 5 years after last seen
    Height 100%4'8"–5'0" vs 5'1"
    Weight 22%95–110 lb vs 190 lb
    Hair 100%Brown vs Brown
    Eyes 100%Brown vs Brown
    77%Possible
    Jane Doe — Sherman Oaks, California - unidentified case UP14607
    Jane Doe — Sherman Oaks, California
    UP14607 • Found Jan 1, 2007
    View case
    Sex ✓Female
    Age 85%Est. 40–60 vs 45
    Race 100%White
    Location 73%112 mi away, same state
    TimingFound 11 months after last seen
    Height 84%4'11" vs 5'1"
    Weight 59%135 lb vs 190 lb
    Hair 100%Brown vs Brown
    Eyes 100%Brown vs Brown
    77%Possible
    Jane Doe — Angeles National Forest, California - unidentified case UP2963
    Jane Doe — Angeles National Forest, California
    UP2963 • Found Dec 20, 2007
    View case
    Sex ✓Female
    Age 100%Est. 44–56 vs 45 when missing
    Race 100%White
    Location 74%105 mi away, same state
    TimingFound 22 months after last seen
    Height 100%5'2"–5'6" vs 5'1"
    76%Possible
    Jane Doe — Carlsbad, California - unidentified case UP128322
    Jane Doe — Carlsbad, California
    UP128322 • Found Aug 12, 2024
    View case
    Sex ✓Female
    Age 100%Est. 50–60 vs 45 when missing
    Race 100%White
    Location 85%65 mi away, same state
    TimingFound 18 years after last seen
    Height 84%5'3" vs 5'1"
    Weight 24%111 lb vs 190 lb
    Hair 100%Brown vs Brown
    Eyes 100%Brown vs Brown
    75%Possible
    Jane Doe — Corona, California
    UP16684 • Found Mar 27, 2012
    View case
    Sex ✓Female
    Age 85%Est. 40–60 vs 45 when missing
    Race 100%White
    Location 87%57 mi away, same county
    TimingFound 6 years after last seen
    Height 84%5'3" vs 5'1"
    Weight 29%115 lb vs 190 lb
    Hair 100%Brown vs Brown
    75%Possible
    Jane Doe — Los Angeles, California - unidentified case UP7520
    Jane Doe — Los Angeles, California
    UP7520 • Found Jun 7, 2008
    View case
    Sex ✓Female
    Age 85%Est. 38–58 vs 45 when missing
    Race 100%White
    Location 75%100 mi away, same state
    TimingFound 2 years after last seen
    Height 68%5'4" vs 5'1"
    Weight 96%213 lb vs 190 lb
    Hair 40%Gray vs Brown
    Eyes 100%Brown vs Brown

    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 (1)

    Diane Christine Pierce, 45, disappeared after a night at the Spa Resort Casino in Palm Springs on... ...Read More
    12/12/2024

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