- Associated Press - Friday, August 15, 2014

IOWA CITY, Iowa (AP) - An eastern Iowa man has pleaded guilty to charges in connection to threatening letters involving a major high school football program.

The Iowa City Press-Citizen reports (http://icp-c.com/1oWYH2w ) 44-year-old Daniel Stone, of Solon, pleaded guilty Thursday to third-degree harassment and interference with official acts as part of plea deal.

Stone was arrested in July after DNA evidence linked him to several letters in August 2013 that allegedly threatened administrators at Regina High School in Iowa City.

Administrators say they received letters that said the school’s football coaching staff was providing performance enhancing drugs to the student athletes. The letters made demands in exchange for silence on the allegations.

An investigation into the letters’ allegations turned up nothing.

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Information from: Iowa City Press-Citizen, http://www.press-citizen.com/