JERUSALEM -- A Nazi war criminal known as "Dr. Death" for sadistic experiments that killed hundreds of prisoners during World War II has been tracked down to Spain, an Israeli newspaper's Web site said Saturday. Spanish police said they had not yet found the man. The German weekly Der Spiegel said Spanish investigators believe the 91-year-old suspect, Aribert Heim, has been in Spain recently. Police said they had not found Heim during searches after receiving indications that he was living in the northeastern province of Girona. "We haven't detained anyone with that name," said Joan Lopez, a police spokesman in...