An Italian peace activist who helped establish a summer camp for Arab children in Jerusalem was identified Friday as the tourist stabbed to death by an Arab assailant outside the capital's Old City a day earlier, police and embassy officials said. The Italian Embassy identified the victim as Angelo Frammartino, 24, from Monte Rotondo, near Rome. Frammartino was walking with other tourists near the Herod's Gate in the heart of east Jerusalem at about 7:30 p.m. when a young man stabbed him in the back, Jerusalem police spokesman Shmuel Ben-Ruby said. Frammartino died shortly afterward. The assailant was still at large Saturday. It was not immediately clear whether the attacker mistook the Italian student for a Jew, or if he was trying to hurt tourism to Jerusalem. Frammartino had arrived in Israel at the beginning of the month, and was due to return to Italy the day after he was killed.