Demonstrators take to downtown Chicago during the rally on August 7, 2016. O'Neal, an unarmed 18-year-old man, was killed when Chicago Police officers tried to arrest him for allegedly stealing a Jaguar car.
Demonstrators block the intersection of Chicago Avenue and State Street as they protest.
The Chicago Police department released videos of the shooting to the public and media, which was captured by body cameras and dashboard cameras.
Demonstrators carry placards as they march.
A demonstrator raises her fist as she blocks as she blocks Lake Shore Drive.