Authorities Continue Search In South Suburbs For Missing Man

(CBS) -- Authorities in the south suburbs are continuing their search in a Cook County forest preserve for a Chicago man who has been missing since Thursday.

John Cunningham Jr., 27, was last seen on Thursday at approximately 10:45 a.m. in a Cook County forest preserve near 104th and McCarthy in Palos Park. According to John Cunningham Sr., the missing man's father, he was wearing a gray T-shirt, black sweatpants with white stripe and no shoes and was "distraught" when he left home.

The Cook County Sheriff's office has used helicopters with thermal imaging as well as hundreds of people searching on the ground and search dogs.

"We've had volunteers of up to maybe a 100 to 125 people canvassing the residential areas, handing out flyers and we even had Homeland Security, who happened to be in town, volunteer a hundred of their people to help us," John Cunningham Sr. said.

Anyone with information can contact police at 708-865-4896.