NEW : Police say they are focusing on whether the attack was ` ` nationalistic '' Israel : The term is used when victims are targeted based on their Arab or Israeli heritage . ` It was clear that they came to kill , '' the Israeli newspaper Haaretz quoted Wilson as saying . Kristine Luken was attacked with a friend and colleague from a Christian background . Luke 's friend survived the attacked and summoned help .
NEW : Police say they are focusing on whether the attack was ` ` nationalistic '' Israel : The term is used when victims are targeted based on their Arab or Israeli heritage . Kristine Luken was attacked with a friend and colleague from a Christian background . Luke 's friend survived the attacked and summoned help .