A man was found dead inside a car Tuesday morning in the River North neighborhood, according to Chicago Police.
Just after 11 a.m., the 18-year-old was found unresponsive by building security in a parking garage in the 500 block of North Kingsbury, police said.
He was pronounced dead at the scene, police said. There were no signs of trauma.
A police source said the death appears to be a suicide.
Area Central detectives are investigating.