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

Cynthia Grotjohn

Missing
Case Description
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Cynthia Grotjohn, a 35-year-old woman, was last seen on December 3, 1996, in Cornelius, Oregon. Known for her warm personality and close relationships with family and friends, Grotjohn’s sudden disappearance left her loved ones deeply concerned. She was described as having brown hair and brown eyes, and her absence was particularly alarming as she was known to maintain regular contact with her family.

On the day she went missing, Grotjohn was reportedly seen leaving her home, but she ...Read More
Last Seen: Dec 03, 1996
Links to Additional Sources (3)
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  • True Crime Tuesday: Gone 28 years, still missing, still unsolved
  • True Crime Tuesday: Cynthia Marie Grotjohn - YouTube
    •     ...View 1 additional sources
    Victim Details

    Jun 25, 2013

    Jan 08, 2024

    Cynthia

    Grotjohn

    63

    35

    69 inches

    70 inches

    150 lbs

    160 lbs

    White / Caucasian

    Female

    Dec 03, 1996

    Cornelius

    Oregon

    Washington County

    No

    240

    13786

    Washington County Sheriff's Office

    Hillsboro

    Oregon

    Washington County

    97123

    215 Southwest Adams Avenue, Oregon

    5038462700

    County

    Law Enforcement

    https://www.co.washington.or.us/sheriff/

    96-21118

    Washington County Sheriff's Office

    Brown

    Brown

    Brown

    No

    01/17/2026


    Area Last Seen:
    Forum Posts (2)
    I’ve always been struck by the lack of attention on the specific day Cynthia Grotjohn went missing... ...Read More
    07/19/2023
    Did anyone else notice the lack of publicized info about Cynthia's car or transportation situation? ... ...Read More
    05/06/2023
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