CENTRAL FALLS — It's been 30 years since 7-year-old Michelle Norris was murdered, but her family still holds out hope that the killer will be brought to justice.About 50 people marched on Saturday to draw attention to the unsolved case. Chanting Michelle’s name and holding up signs saying “Let her finally rest in peace,” they walked from the Central Falls police station, past the school playground where the little girl was last seen alive, and to a sports [...]