The person at the center of this case
Michael Lee Knapstein
Missing Person · Open
6 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 remained in the vehicle—what triggered his sudden departure?
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timeline
Lead #3What errands was he planning to run that morning, and did anyone see him after leaving home?
Michael Lee Knapstein, a 59-year-old man, disappeared on July 29, 2020, after leaving his home in Winter Haven, Florida to run errands. His vehicle was found parked at an emergency care clinic with his wallet and phone still inside, suggesting an unexpected departure. The circumstances of his disappearance remain unclear, and authorities continue seeking information about his 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.
💡
clue
Lead #4Has anyone reported seeing Michael near the clinic or in the surrounding area on July 29, 2020?
Have information about any of these leads?
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
👤
2020-07-29
early morningMichael Knapstein leaves home
Mr. Knapstein left his home early in the morning to run errands and never returned home.
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2020-07-29
Vehicle discovered at clinic
His vehicle was found parked at an emergency care clinic with his wallet and phone still inside.
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2020-07-30
Case reported to authorities
Polk County Sheriff's Office opened case #2020-29449.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:July 29, 2020 at Invalid Date
Last Updated:September 27, 2026
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Phone: 8632986834
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Case Information
Incident:July 29, 2020 at Invalid Date
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 8632986834
You can remain anonymous