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Jason Theis Missing Person Case

Last seen in Calimesa, California on Sep 13, 2012

Victim Details

Created

Apr 02, 2018

Case Added

Jan 12, 2024

Firstname

Jason

Lastname

Theis

Current Age

Age At Disappearance

Height

73 inches

Height To

74 inches

Weight

270 lbs

Weight To

275 lbs

Ethnicity

White / Caucasian

Gender

Male

Last Seen

Sep 13, 2012

City

Calimesa

State

California

County

Riverside County

Zip Code

92320

Agency ID

32158

Agency Name

San Bernardino County Sheriff's Department- Yucaipa Patrol Station

Agency City

Yucaipa

Agency State

California

Agency County

San Bernardino County

Agency Zip Code

92399

Agency Contact

Shelby Swanson

Contact Job Title

Sheriff's Detective

Agency Address

34144 Yucaipa Boulevard, California

Agency Phone

9099182305

Agency Jurisdiction

County

Agency Type

Law Enforcement

Agency Website

https://wp.sbcounty.gov/sheriff/patrol-stations/yucaipa/

Agency Case #

141300100

Agency Report Date

2013-01-08

Primary Agency

San Bernardino County Sheriff's Department- Yucaipa Patrol Station

CaseContributors

Hair Color

Black

Left Eye Color

Brown

Right Eye Color

Brown

Last Updated

07/04/2026

Area Last Seen:

Case Description

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Jason Dale Theis, a 26-year-old from Calimesa, California, was last seen on September 13, 2012. Standing 6'2" and weighing approximately 270 pounds, Jason had black hair and brown eyes. Prior to his disappearance, Jason told his family that he was planning to travel to Ireland. However, after September 13, all contact with him ceased, and he has not been heard from since.

Jason's family and law enforcement have had no updates regarding his whereabouts, and there are few d ...

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Last Seen: Sep 13, 2012

Links to Additional Sources (3)

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Missing Person / NamUs #MP42913

Jason Dale Theis | State of California - Department of Justice

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Jason Theis Missing Person Case

Last seen in Calimesa, California on Sep 13, 2012

Victim Details

Case Description

Continue reading the complete case summary

Links to Additional Sources (3)

Unlock 1 additional source

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Forum Posts (2)

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