Sergio Calderon, 45, was last seen at a Chicago home on January 15, 2011. The report of his disappearance was filed with the Chicago Police Department three days later, and Area Central detectives handled the investigation. His entry in NamUs is MP55856.

At the time he was described as a Hispanic male, 5 feet 6 inches to 5 feet 8 inches tall, weighing 170 to 190 pounds, with brown hair and brown eyes. Beyond his presence in the residence that day, details about his last known movements are unclear and no significant leads have been reported.

If anyone in the Chicago area remembers seeing Sergio around January 15, 2011, or has information that could help his family find answers, please come forward.