The person at the center of this case
Isaac Daniel Seidel
Missing Person · Open
4 years waiting · since 2021
Missing Person: Isaac Daniel Seidel
Justice for Isaac Daniel Seidel — the trail went cold in 2021, but the truth hasn't.
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Key leads to think about
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location
Lead #1Why did Seidel leave without caring for his pig or informing his employer, actions contrary to his usual pattern?
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vehicle
Lead #2Was Seidel actually traveling by bicycle, and if so, has the bicycle been located?
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location
Lead #3Did Seidel head to Tuscarora State Forest where he frequently hiked, or did he travel elsewhere?
Isaac Daniel Seidel, a 36-year-old white male, disappeared from his home in Blain, Pennsylvania on September 12, 2021, possibly while on a bicycle. Unlike his typical hiking trips to Tuscarora State Forest, Seidel left without arranging care for his pet pig or notifying his employer, raising concerns about the circumstances of his departure. The case remains open with Pennsylvania State Police investigating, and anyone with information about his whereabouts is urged to contact authorities.
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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 #4What triggered this departure on September 12, 2021, and were there any personal or work-related stressors?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP86758. Missing person: Isaac Daniel Seidel.
Last known contact: 2021-09-12 in Blain, Perry, PA. Circumstances: MISSING: 36YO Isaac D SEIDEL, W/N-M, who has not been seen or heard from since 09/12/2021.
SEIDEL left his home on 09/12/2021 under unknown circumstances, possible on a bicycle. It is not untypical for SEIDEL to pick up and leave for a few days while going hiking or on a ride; however, SEIDEL had not made arrangements for someone to feed his pig, nor has he showed up for work.
These actions are atypical for SEIDEL as he usually tells someone when he isn't going to be home for a few days. SEIDEL likes to hike and roam around in the Tuscarora State Forest between Blain and Newburg, Pennsylvania.
Demographics: 36 years, Male, White / Caucasian. Physical description: 6 ft 0 in, 150 lbs, hair: Brown, eyes: Blue.
Investigating agency: Pennsylvania State Police | PA2021-1263691 | 2021-09-12.
Timeline of Events
👤
2021-09-12
Isaac Seidel Goes Missing
36-year-old Isaac Daniel Seidel left his home in Blain, Pennsylvania under unknown circumstances, possibly on a bicycle. He did not arrange care for his pet pig nor notify his employer, which was atypical behavior.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:September 12, 2021
Last Updated:July 11, 2026
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Phone: 7175673110
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Case Information
Incident:September 12, 2021
Last Updated:July 11, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 7175673110
You can remain anonymous