Caplin was last seen on Tuesday at 7:30 p.m., when he may have walked away from his house on the 800 block of Forestway Drive.
Caplin is possibly wearing a black leather jacket, white t-shirt and dark blue running pants. He has been known to walk to Starbucks, libraries, grocery stores and forest preserves.
Police say he may be unable to talk.
If you have any information regarding his whereabouts, contact Glencoe Police at (847) 461-1135.
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