The person at the center of this case
Isaac Daniel Seidel
Missing Person · Open
5 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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vehicle
Lead #1Was Seidel traveling by bicycle as suspected? Has the bicycle been located?
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location
Lead #2Why did Seidel deviate from his normal hiking routine by not arranging care for his pig or notifying his employer?
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location
Lead #3What specific areas of Tuscarora State Forest between Blain and Newburg should be prioritized in the search?
Isaac Daniel Seidel, a 36-year-old white male, disappeared on September 12, 2021, from his home in Blain, Pennsylvania, possibly while on a bicycle. Unlike his typical hiking trips, Seidel left without arranging care for his pet pig or notifying his employer, marking a significant departure from his usual behavior. The case remains unsolved, and investigators are seeking information about his whereabouts in the Tuscarora State Forest region where he frequently hiked.
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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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evidence
Lead #4Has any evidence of Seidel's bicycle or personal items been discovered in the forest areas he frequented?
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 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
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2021-09-12
Last Contact
Isaac Daniel Seidel last seen or heard from at his home in Blain, Perry County, PA. Left under unknown circumstances, possibly on a bicycle.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:September 12, 2021
Last Updated:September 27, 2026
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Phone: 7175673110
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Case Information
Incident:September 12, 2021
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 7175673110
You can remain anonymous