For Newtown, 2012 Sandy Hook Elementary School shooting is still painful. It's been three years since the terrible day Jimmy Greene’s 6-year-old daughter, Ana Grace Marquez, and 19 other children were murdered in the mass shooting at Sandy Hook Elementary School. But life without Ana, who loved to sing and dance from room to room, continues to be so hard that, in some ways, Dec. 14 is no tougher than any other day for Greene.