Police went to the home and "they made contact with a female occupant of the residence. While they were talking with her, they heard sounds of a male occupant (who) possibly needed medical attention. They tried to gain entry, and as they were doing so, a male occupant of the home confronted the officers with a crossbow. The officers successfully were able to safely back out of the residence and called for the assistance of the Chicago Police SWAT Unit," Andrews said.