Medical examiner: Hiker suffered heart attack

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MEDORA — The North Dakota State Medical Examiner said a hiker from Virginia found dead in Theodore Roosevelt National Park in July suffered a massive heart attack.

Park Superintendent Valerie Naylor said in a press release that 48-year-old Dan Olszewski of Midlothian, Va., was an avid and well-prepared hiker.

Olszewski had come to the park for a day hike and was reported missing when he did not report to work. His body was found in the park’s south unit after a three day, multi-agency search.

An autopsy was performed to determine the cause of death.

Olszewski had been in North Dakota working.

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