They have a lead. Turkish Interior Minister Efkan Ala says investigators know who blew himself up on a busy shopping promenade yesterday, killing two Israeli-Americans, an Israeli and an Iranian. He named Mehmet Ozturk of Gaziantep, in his 20s, as the bomber and “a member of Daesh,” the Arabic name for ISIS. The attack resembled the January attack in the city that killed 12 German tourists, among the 80 deaths in four such attacks this year. Meanwhile, Israel is investigating whether its citizens, another 36 of whom were wounded Saturday, were intentionally targeted.