KANSAS CITY, Mo. — Eighty-one years after he was killed in the attack on Pearl Harbor, Seaman First Class Wilbur F. Newton’s remains returned to his hometown in Missouri. Members of Newton’s family felt relieved and finally at peace when his remains, identified through DNA testing, arrived at Kansas City International Airport on Tuesday to a Navy guard and water salute from two fire trucks. “It is very moving for the family,” said Jane Perkins, the daughter of Newton’s first cousin. “We’ve hoped, we’ve always wondered, but nobody really knew before now.” Newton died Dec. 7, 1941, in the attack…