The person at the center of this case
Michael Lee Knapstein
Missing Person · Open
5 years waiting · since 2020
Missing Person: Michael Lee Knapstein
Justice for Michael Lee Knapstein — the trail went cold in 2020, but the truth hasn't.
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Key leads to think about
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location
Lead #1Why was his vehicle parked at an emergency care clinic? Was he seeking medical attention?
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evidence
Lead #2His wallet and phone were left in the vehicle—what does this suggest about the circumstances of his disappearance?
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witness
Lead #3Did anyone at or near the emergency care clinic see Michael or interact with him on July 29, 2020?
Michael Lee Knapstein, a 59-year-old man, left his home in Winter Haven, Florida on July 29, 2020 to run errands and never returned. His vehicle was found parked at an emergency care clinic with his wallet and phone still inside, suggesting an unexpected disappearance. The circumstances of his departure and current whereabouts remain unknown, and investigators continue to seek information about what happened to him.
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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.
⏰
timeline
Lead #4What specific errands was he planning to run, and in what order?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP72284. Missing person: Michael Lee Knapstein.
Last known contact: 2020-07-29 in Winter Haven, Polk, FL. Circumstances: Mr.
Knapstein left his home early in the morning, to run errands, and never returned home. His vehicle was parked at an emergency care clinic.
His wallet and phone were still in the vehicle . Demographics: 59 years, Male, White / Caucasian.
Physical description: 5 ft 10 in, 190 lbs, hair: Gray or Partially Gray, eyes: Green. Investigating agency: Polk County Sheriff's Office | #2020-29449 | 2020-07-30.
Timeline of Events
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2020-07-29
early morningLeft home to run errands
Michael Lee Knapstein departed his residence early in the morning to run errands and never returned home.
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2020-07-29
Vehicle discovered at emergency care clinic
His vehicle was found parked at an emergency care clinic with his wallet and phone still inside.
🕵️
2020-07-30
Case reported to authorities
Polk County Sheriff's Office opened case #2020-29449 on July 30, 2020.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:July 29, 2020 at Invalid Date
Last Updated:June 3, 2026
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Phone: 8632986834
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Case Information
Incident:July 29, 2020 at Invalid Date
Last Updated:June 3, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 8632986834
You can remain anonymous