SPRINGFIELD, Mo. (AP) — A former Missouri high school superintendent is charged with two counts of first-degree murder in the deaths of a Springfield couple.

Greene County prosecutor Dan Patterson on Friday charged Mark Porter with two counts of first-degree murder in the deaths of 60-year-old Gary Tyrrell and his wife, 61-year-old Jan Tyrrell. The couple was found dead in their home on May 1.

Patterson said in a news release that the 53-year-old Porter was arrested after DNA left on a latex glove found in the Tyrrells' home was matched to DNA on a coffee cup abandoned by Porter.

The Springfield News-Leader reports (http://sgfnow.co/1uFvv36 ) Porter was superintendent at the Mountain Grove School District when Gary Tyrrell was assistant superintendent.

It was not immediately clear if Porter has an attorney.

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Information from: Springfield News-Leader, http://www.news-leader.com