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

Diana Mazariegos Missing Person Case

Last seen in Fontana, California on Jun 23, 2006

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Victim Details

Created

Apr 15, 2010

Case Added

Aug 15, 2017

First Name

Diana

Last Name

Mazariegos

Current Age

Age At Disappearance

Height

61 inches

Weight

115 lbs

Ethnicity

Hispanic / Latino

Gender

Female

Last Seen

Jun 23, 2006

City

Fontana

State

California

County

San Bernardino County

Zip Code

92336

Agency ID

30423

Agency Name

Fontana Police Department

Agency City

Fontana

Agency State

California

Agency Address

Agency Case #

060011041

Agency Report Date

Jun 23, 2006

Primary Agency

Fontana Police Department

Hair Color

Brown

Left Eye Color

Brown

Right Eye Color

Brown

Last Updated

Oct 16, 2026

Area Last Seen:

Case Description

Any updates on this case? Let us know!

Summary based on the NamUs case record (MP6371) and 7 other sources

Diana Mazariegos, a 15-year-old girl from Fontana, California, was last seen on June 23, 2006. The day after her birthday, Diana left home, telling her family she was going to school, but the school was not in session that day. Authorities believe she may have left of her own accord, and she was classified as an endangered runaway. Diana has distinguishing characteristics, including braces on her teeth and a pierced lip, and she may have been using the alias "Melissa." Her hair was dyed blonde at the top and brown at the bottom at the time of her disappearance.

Despite years of investigations, including follow-ups on potential leads, Diana's whereabouts remain unknown. Some reports suggest she may still be in the local area and possibly traveling in a red SUV. Her case remains open, and law enforcement continues to seek information to locate her. Anyone with details is encouraged to contact the Fontana Police Department.
Last Seen: Jun 23, 2006

Links to Additional Sources (7)

See any mistakes? Let us know!

Diana Mazariegos - The Charley Project

Diana Mazariegos - California Department of Justice

Fontana Police Department seeks help in locating person who has ...

Missing Person / NamUs #MP6371

3671DFCA - Diana Mazariegos - Doe Network

Diana Mazariegos- California- 2006

Family seeks public's help in finding missing girl | News

Possible Unidentified Matches (2)

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.

79%Possible

Jane Doe — California

UP54236 • Found Aug 9, 2018

View case

Sex ✓Female

Age 100%Est. 12–20 vs 15 when missing

Race 100%Hispanic

Location 75%100 mi away, same state

TimingFound 12 years after last seen

Height 100%5'1" vs 5'1"

Weight 100%111 lb vs 115 lb

Hair 100%Brown vs Brown

Eyes 100%Brown vs Brown

76%Possible

Jane Doe — Los Angeles, California

UP158123 • Found Apr 10, 2026

View case

Sex ✓Female

Age 65%Est. 40–65 vs 15 when missing

Race 100%Hispanic

Location 90%48 mi away, same state

TimingFound 20 years after last seen

Height 100%5'1"–5'7" vs 5'1"

Weight 100%120 lb vs 115 lb

Hair 100%Brown 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.

Diana Mazariegos Missing Person Case

Last seen in Fontana, California on Jun 23, 2006

Victim Details

Case Description

Links to Additional Sources (7)

Possible Unidentified Matches (2)

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Forum Posts (1)

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