OMAHA, Neb. — Dozens prayed for peace at the Jewish Community Center Friday evening. Advertisement At the start of Shabbat, the Jewish day of rest, Omaha's Jewish community honored their friends and family in Ukraine. The war-torn country once had one of the largest Jewish populations in Europe. More than a million Jews were murdered in the Holocaust. Many more fled because of pogroms or the Soviet regime. "For Jews at least, memory is a sixth sense. We've seen this movie before, and it didn't end well," said Rabbi Steven Abraham. "It's an easy group of people to go after....