A Massachusetts man previously convicted of indecently assaulting a child has been sentenced to 20 years in prison for inducing a minor in the Philippines into sharing sexually explicit photos, federal prosecutors said. Charles Fox, 47, of Greenfield, was also sentenced Tuesday in federal court in Springfield to 10 years of probation. “Mr. Fox exploited a helpless child on the other side of the world, robbing them of their innocence,” U.S. Attorney Rachael Rollins said in a statement.