The person at the center of this case
Mary Alice Helm
Missing Person · Open
19 years waiting · since 2007
Missing Person: Mary Alice Helm
Justice for Mary Alice Helm — the trail went cold in 2007, but the truth hasn't.
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Key leads to think about
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witness
Lead #1Did anyone see Mary Alice Helm on or near her walk on January 20, 2007 in the Alta area?
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evidence
Lead #2What happened during her walk that day? Were there any signs of foul play or accident?
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clue
Lead #3She was wearing a tan suede coat with green collar and white tennis shoes with pink trim—has anyone seen these items?
Mary Alice Helm, a 44-year-old woman, disappeared on January 20, 2007, while staying with friends in Alta, California and went out for a walk from which she never returned. Nearly two decades later, her whereabouts remain unknown, and investigators have not determined what happened to her that day. Anyone with information about her disappearance or sightings is urged to contact the Placer County Sheriff's Office.
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Official wording
Source Narrative
NamUs case MP3913. Missing person: Mary Alice Helm.
Last known contact: 2007-01-20 in Alta, Placer, CA. Circumstances: Ms.
Helm was staying with friends in the Alta area. She was home alone and apparently went for a walk.
Demographics: 44 years, Female, White / Caucasian. Physical description: 5 ft 4 in, 160 lbs, hair: Brown, eyes: Brown.
Clothing and accessories: Clothing: tan suede coat with green collar; Footwear: white tennis shoes with pink trim. Investigating agency: Placer County Sheriff's Office | 07-976 | 2007-01-20.
Timeline of Events
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2007-01-20
Mary Alice Helm goes missing
Ms. Helm was staying with friends in the Alta area. She was home alone and went for a walk, from which she did not return.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:January 20, 2007
Last Updated:June 19, 2026
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Phone: 5308897800
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Case Information
Incident:January 20, 2007
Last Updated:June 19, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5308897800
You can remain anonymous