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Story summary
- Illinois State Police (ISP) took lead on an investigation after boaters found a human arm in Lake Mattoon on June 28, 2026.
- The arm bore tattoos, including a Green Bay Packers helmet, which investigators hope will identify the deceased.
- Cumberland County Sheriff’s Department asked ISP to assume control of the case after the discovery.
- ISP investigators released photos and urged recognizing the tattoos to call Zone 8 Investigations at 618-542-2400 or email ISP.Zone8commander@illinois.gov.
