NEW YORK — A Jewish graduate of Columbia University was gunned down while visiting Israel for a friend’s wedding, and two Palestinian suspects were arrested Wednesday in the killing. Elan Ganeles, 27, of West Hartford, Connecticut, was shot to death Monday while driving on a highway near the Dead Sea — the lone fatality in a shooting spree that set off a manhunt for the killers, according to Israeli leaders. The two arrested men are suspected of involvement in the killing, according to Israeli officials, and a third man was taken into custody after their arrests in a refugee camp raid when he ...