Eldge Walton, 74, was last seen in the 9200-block of South Blackstone on March 4. He was wearing a Chicago Police dress blouse uniform coat, dark blue police uniform pants, a turquoise sweater and a blue, Sox knit cap.
Walton has severe dementia and cancer.
Police say Walton may have his retired police star with him, but his family does not think he has a weapon with him. They do not know if he has identification with him.