A fourth heat-related death has been confirmed by the Cook County medical examiner's office. The names of three people who died of heat-related causes during the recent surge in high temperatures had been released previously. The fourth victim has been identified as a 69-year-old male in Evanston. Records show the victim died Wednesday, but the cause of death was not identified until Sunday. His name and other details have not been released, as next of kin had not been notified as of early Monda