CHICAGO (AP) - Police are investigating a second fire in the same high-rise Cook County office building where a major blaze last year killed six people, and say the fires had similarities. Police had been close to issuing a report about the cause of the Oct. 17 fire at the Cook County Administration Building, but now will wait until after they investigate the smaller June 25 fire, the Chicago Tribune reported. � Copyright 2004, The News & Observer Publishing Company,