A new regional arts magnet school named after a first grader killed at Sandy Hook School has opened in Bloomfield.  The ribbon was cut yesterday on the Academy of the Arts, named for Ana Grace Marquez-Greene.  The Capitol Regional Education Council built the nearly 157,000 square-foot building to house about 850 pre-kindergarteners through 8th graders from across northern and central Connecticut.  Nelba Marquez-Greene and her husband Jimmy Greene are CREC school alumni and former teachers.  CREC renamed its arts elementary school in Avon after Ana Grace, and adopted the family’s “Love wins” motto as a component of messages of kindness, self-worth and mutual respect.