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A Knox County school security officer cited for indecent exposure has resigned from his job.

In December, officers cited Dennis Murphy and 8 other men in a police sting at Tyson Park near UT campus. Murphy was granted judicial diversion in January.

The charge will be wiped from Murphy's record after 6 months, as long as he's not charged with another crime and stays out of Tyson Park.

Murphy was on paid administration leave at Knox County Schools, but turned in his resignation on Tuesday.