LOS ANGELES - A Jewish Defense League activist imprisoned for his role in an alleged plot to bomb a California mosque and the office of a Lebanese-American congressman was killed at a federal prison in Phoenix. Earl Krugel, 62, of Reseda, who was sentenced in September to 20 years in prison in a plea bargain, was killed Friday in what his wife said she was told was an assault by another inmate, who hit him from behind with a concrete block. "Earl never saw it happening," Lola Krugel said. "He was exercising." Krugel's sister, Linda Krugel said her brother had...