A 55-year-old woman was shot to death Monday evening on Interstate-57, according to police.
The shooting happened about 10 p.m. in the inbound lanes of the expressway near Cicero Avenue, Illinois State Police said.
The woman who was later identified as Tamara Clayton-Shelton, was a postal worker who was driving north on I-57 when she was fatally shot.
Police say she was the only person in the car and was pronounced dead at the scene.
“The Postal Service is deeply saddened on hearing of this tragedy and share our thoughts and prayers with the family,” USPS spokesman Tim Norman said in a statement.
An autopsy Tuesday found she died of multiple gunshot wounds to the head, according to the Cook County medical examiner’s office. Her death was ruled a homicide.
All inbound lanes of the expressway were closed for an investigation until after midnight, police said. Three shell casings were recovered from the ground.
The U.S. Postal Inspection Service is assisting with the investigation as the circumstances regarding the shooting remain unknown.
Earlier that day, three people, including a 15-year-old were wounded in a shooting on I-57 near Calumet Park.