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

Seung Sim Missing Person Case

Last seen in Anaheim, California on Oct 22, 2017

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Victim Details

Created

Feb 8, 2023

Case Added

Feb 9, 2023

First Name

Seung

Last Name

Sim

Current Age

Age At Disappearance

Height

71 inches

Weight

172 lbs

Ethnicity

Asian

Gender

Male

Last Seen

Oct 22, 2017

City

Anaheim

State

California

County

Orange County

Zip Code

92804

Tribal Land

Agency ID

123095

Agency Name

Anaheim Police Department

Agency City

Anaheim

Agency State

California

Agency County

Orange County

Agency Zip Code

92805

Agency Contact

Jim Accornero

Contact Job Title

Sr Police Services Representative

Agency Address

425 South Harbor Boulevard, California

Agency Phone

7147651900

Agency Jurisdiction

Local

Agency Type

Law Enforcement

Agency Website

http://www.anaheim.net/171/Police-Department

Agency Case #

17-176315

Agency Report Date

Nov 16, 2017

Primary Agency

Anaheim Police Department

Case Contributors

3137

Hair Color

Black

Left Eye Color

Brown

Right Eye Color

Brown

Last Updated

Oct 7, 2026

Area Last Seen:

Case Description

Any updates on this case? Let us know!

Summary based on the NamUs case record (MP100075) and 3 other sources

Seung Sim, a 45-year-old man, was last seen on October 22, 2017, in Anaheim, California. His disappearance remains a mystery, with little information publicly available regarding the circumstances surrounding his case. There are no reported details about his personal belongings or any notable events leading up to his disappearance. Despite his case being documented in missing persons databases, no significant breakthroughs have been reported, and he remains missing to this day.

If anyone has any information that could help locate Seung Sim, they are urged to contact the authorities, specifically the Anaheim Police Department, which has been involved in the investigation since the start.
Last Seen: Oct 22, 2017

Links to Additional Sources (3)

See any mistakes? Let us know!

Capstone Project Database - UCLA Luskin School of Public Affairs

Student Profiles - USC Viterbi - University of Southern California

Shin-Soo Choo - Wikipedia

Possible Unidentified Matches (1)

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.

76%Possible

John Doe — Los Angeles, California

UP58402 • Found Jun 10, 2019

View case

Sex ✓Male

Age 80%Est. 50–70 vs 45 when missing

Race 100%Asian

Location 96%24 mi away, same state

TimingFound 20 months after last seen

Height 36%5'2"–5'6" vs 5'11"

Weight 76%134 lb vs 172 lb

Hair 100%Black vs Black

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.

Seung Sim Missing Person Case

Last seen in Anaheim, California on Oct 22, 2017

Victim Details

Case Description

Links to Additional Sources (3)

Possible Unidentified Matches (1)

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Forum Posts (1)

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