(Grand Forks, ND) — A Minnesota man has pleaded guilty to sex crimes against underage girls in Grand Forks County. Forty-seven-year-old Manuel Martinez Jr is accused of sexually abusing four young girls between 2012 and 2021, and is charged with four counts of felony gross sexual imposition. Martinez will be sentenced on August 30th, and a 50-year sentence with 20 years suspended has been recommended as part of a plea agreement. Felony gross sexual imposition carries a maximum sentence of life in prison without parole.