FOXBOROUGH, Mass. — A grim-faced coach Bill Belichick said Wednesday the New England Patriots will learn from the "terrible experience" of Aaron Hernandez's arrest on a murder charge and work to improve their player evaluation process. Speaking publicly for the first time since the tight end was arrested four weeks earlier,Belichick said he was "shocked and disappointed" to learn of the criminal investigation while he was out of the United States. He also sought to minimize future attention on the case.