A former Kent Island martial arts instructor pleaded guilty to sex abuse of a minor and was given a 25-year sentence with all but 10 years suspended. Justin Ray Dutcher, 25, formerly of 902 Auckland Way, Chester, pleaded guilty to one count of having sex with a 15-year-old student in exchange for the prosecution dropping a second charge of sex abuse and other less serious charges. Since he was the victim’s teacher and had custodial care of her at the time of the April 24, 2010 offense, his actions were considered sex abuse of a minor under the state’s criminal code.