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Mark Johnston Missing Person Case

Last seen in Sandy, Utah on Oct 12, 2016

Victim Details

Feb 3, 2017

May 28, 2019

Mark

Johnston

39

29

69 inches

70 inches

165 lbs

175 lbs

White / Caucasian

Male

Oct 12, 2016

Sandy

Utah

Salt Lake County

34312

Sandy Police Department

Sandy

Utah

,

2016-51231

Sandy Police Department

Brown

Brown

Brown

Oct 12, 2026


Area Last Seen:

Case Description

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Summary based on the NamUs case record (MP37020) and 13 other sources
Mark Richard Johnston, a 29-year-old from Sandy, Utah, was last seen on October 11, 2016. He was reported missing after he did not return home, leaving behind his personal items, including his cell phone, computer, and identification. Although it is believed that Johnston accessed his bank account on October 12, no one saw him after his last confirmed sighting.

At the time of his disappearance, Johnston was wearing a blue and gray striped shirt, gray dress pants, and dress shoes. He is described as 5'7", weighing between 165 and 175 pounds, with brown hair and brown eyes. He has distinguishing scars, including an appendectomy scar on the right side of his abdomen and a two- to three-inch scar on his left knee.

Despite ongoing investigations, there have been few developments in the case, and Johnston remains missing. His disappearance is classified as endangered, and authorities urge anyone with information to contact the Sandy Police Department.
Last Seen: Oct 12, 2016

Links to Additional Sources (13)

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  • Mark Richard Johnston : r/NotForgotten - Reddit
  • Mark Richard Johnston - The Charley Project
  • Mark Johnston | DPS - Utah Bureau of Criminal Identification
  • Missing Persons | DPS - Utah Bureau of Criminal Identification
  • Obituary information for Mark C. Johnston - The Godfrey Funeral Home
  • Mark Richard JOHNSTON - Utah Bureau of Criminal Identification
  • Human remains discovered in 2007 confirmed as cocaine dealer ...
  • Mark Johnston - Facebook
  • The Mysterious Disappearance of Sandra Johnson Hughes - Jennifer
  • Missing Person / NamUs #MP37020 | NamUs
  • Unsolved Cold Cases - Mark Richard Johnston
  • UT-Mark Richard Johnston, 29, Salt Lake County, 11 Oct 2016
  • Missing Mark Richard Johnston age 29 October 11, 2016 ... - YouTube

    • 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.

    75%Possible
    John Doe — Rural Salt Lake, Utah
    UP133558 • Found Oct 15, 2024
    View case
    Sex ✓Male
    Age 100%Est. 28–42 vs 29 when missing
    Race 100%White
    Location 99%14 mi away, same county
    TimingFound 8 years after last seen

    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.

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    Forum Posts (3)

    Hey everyone, I've been following Mark Richard Johnston's case for a while now, and I can't stop... ...Read More
    07/01/2024
    Has anyone else been following the Mark Richard Johnston case? One thing that's really puzzling to... ...Read More
    12/29/2023
    Hey everyone, I’ve been thinking a lot about the timeline in Mark Richard Johnston’s case. It’s... ...Read More
    03/29/2023

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