One year behind bars for a Randolph County man arrested in a January sex-sting operation. 21-year-old Nicholas A. Martin, 21, of Union City, had pleaded guilty. He was arrested Jan. 22 at the McDonald’s restaurant in Union City, where authorities said he anticipated having sex with a 13-year-old girl in a restroom. The Union City man’s online communications had actually been with an undercover Randolph County sheriff’s deputy.