Fourteen-year-old Heidi Hackney of Park City cries as she listens to a speaker describe the horrors inflicted upon children who were victims of the Holocaust. Heidi and her mother, Susan, were among the hundreds who attended the Day of Remembrance memorial held at the Utah State Capitol Friday. The most important lesson to be learned from the Holocaust is "the lesson of the bystander" - those who observed the atrocities but did not act, said keynote speaker Steven Katz, professor of religion and director of the Center for Judaic Studies at Boston University. "We must never be bystanders. We must never look on. We must never let evil of any kind against any people, individual or group go unnoticed without our participation to end it. It is a lesson each of us needs to take with great personal seriousness," Katz said. "The message of this memorial is that all of humanity is threatened by such actions," said Elder Robert K. Dellenbach of the LDS Church's First Quorum of the Seventy. See story on B2.