October 11, 2018 at 12:51p.m.
Ray Beiersdorfer, a Youngstown State University distinguished professor of geology and environmental activist, has died.
Beiersdorfer had a heart attack last month and was since hospitalized in critical condition.
YSU hosted a tribute to Beiersdorfer Oct. 5 in which more than 100 people gathered to honor him.
His death was announced today on the Facebook page of his wife, Susie.
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