By Rich McKay BRUNSWICK, Ga. (Reuters) -A judge sentenced white father and son Gregory and Travis McMichael to life in prison on Monday for a federal hate crime in the 2020 murder of Ahmaud Arbery, a Black man shot after jogging in a suburban Georgia neighborhood in a case that involved issues of racist violence and vigilantism in America. U.S. District Judge Lisa Godbey Wood sentenced Travis McMichael, a 36-year-old former U.S. Coast Guard mechanic, and Gregory McMichael, a 66-year-old former Glynn County police officer who later worked for the local prosecutor’s office, in the coastal city o…