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Theresa Lamontagne Missing Person Case

Last seen in Roseville, Michigan on Sep 29, 2003

Victim Details

May 15, 2018

Apr 21, 2022

Theresa

Lamontagne

52

29

69 inches

71 inches

145 lbs

155 lbs

White / Caucasian

Female

Sep 29, 2003

Roseville

Michigan

Macomb County

35221

Macomb County Sheriff's Office

Mt. Clemens

Michigan

Macomb County

48043

Ryan Ruttan

Detective

43565 Elizabeth Rd., Michigan

5864695151

County

Law Enforcement

03-2701

Macomb County Sheriff's Office

10432

Sandy

Green

Green

09/25/2026


Area Last Seen:

Case Description

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On a Monday in the fall of 2003, a 29-year-old mother named Theresa Marie Lamontagne finished her workday and went to her mother's house in Roseville, Michigan. It was September 29th, and Theresa, a resident of nearby New Haven, needed a ride home. Dressed in her medical scrubs and gym shoes, she began calling people to arrange transportation. The day was marked by a sense of unease, as Theresa expressed to her mother that she was feeling overwhelmed, stating, 'Everything's gettin ...
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Last Seen: Sep 29, 2003

Links to Additional Sources (5)

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  • Missing People In America - Facebook
  • 4372DFMI - Theresa Marie Lamontagne - Doe Network
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    Forum Posts (3)

    I've been digging into Theresa Lamontagne's disappearance, and something that caught my eye was the ... ...Read More
    02/01/2024
    I've been digging into Theresa Lamontagne's case, and something that's been on my mind is the calls ... ...Read More
    01/18/2024
    Has anyone looked into the phone records from the last calls Theresa made? I find it odd that she ca... ...Read More
    01/18/2023
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