The person at the center of this case
Carolyn Sue Martin and Mark Steven Martin (age 2)
Violent Crime · Open - Cold Case
45 years waiting · since 1981
CAROLYN SUE MARTIN - HAZEL PARK, MICHIGAN
Justice for Carolyn Sue Martin and Mark Steven Martin (age 2) — the trail went cold in 1981, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1What vehicle were Carolyn and Mark traveling in? Make, model, color, and license plate details are critical to identifying sightings along I-75.
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witness
Lead #2Did anyone see a woman traveling with a young child on I-75 on August 31, 1981, or in the days following? Any rest stop, gas station, or roadside encounters?
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clue
Lead #3Why has there been no contact from either victim in over 40 years? Was there a breakdown, accident, or foul play along the interstate?
Carolyn Sue Martin and her 2-year-old son Mark Steven disappeared on August 31, 1981, while traveling from Michigan to Texas on Interstate 75. The mother and child vanished during their relocation journey and have never been found or heard from again. Despite decades of investigation, the circumstances of their disappearance remain unknown, making this a critical cold case seeking any information about their fate or whereabouts.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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timeline
Lead #4What was the planned route and destination address in San Antonio? Were there scheduled stops or contacts planned along the way?
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evidence
Lead #5Have any remains or personal effects matching the victims been discovered along I-75 or nearby areas in the decades since their disappearance?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
(mother and son missing) Hazel Park, Michigan August 31, 1981 Carolyn and her 2-year-old son Mark Steven Martin were last seen on 08/31/1981, in Hazel Park, Michigan as they set out to move from Madison Heights, Michigan, to San Antonio, Texas. The Victims began their journey traveling southbound on Interstate 75 and have not been heard from or seen since.
Timeline of Events
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1981-08-31
Carolyn and Mark Martin disappear
Carolyn Sue Martin and her 2-year-old son Mark Steven were last seen on August 31, 1981, in Hazel Park, Michigan as they set out to relocate from Madison Heights to San Antonio, Texas, traveling southbound on Interstate 75.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:August 31, 1981
Last Updated:September 10, 2026
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Case Information
Incident:August 31, 1981
Last Updated:September 10, 2026