An autopsy has revealed that the man found unresponsive in a vacant building in Fairfield died of natural causes. The deceased has been identified as 56-year-old Christopher Freeman of Washington, Illinois. Investigators suspect the man forced entry into a residence at 1200 South Street Sunday afternoon because it was his childhood home. A tactical team found Freeman’s body inside the home after police negotiators were unable to make contact with him. According to the Fairfield Police Department, there is no evidence of foul play.