GRAND FORKS, N.D. – A 15-year-old Grand Forks boy suffered significant lower-body injuries Saturday morning after the motorcycle he was driving crashed into the back of an SUV stopped at a red light in Grand Forks. Grand Forks police responded at approximately 10:06 a.m. Saturday, Oct. 3, to the 4400 block of South Washington Street for a crash involving a motorcycle and an SUV. Police said an investigation determined the 15-year-old was driving…