The shooting took place at about 12:23 a.m. on July 2 in the 7600-block of South Halsted Street.
CPD said the video shows four suspects with rifles and handguns firing on a group of people at 76th and Halsted.
The shooting killed two people and injured two others.
Police said the suspects were all wearing dark clothing, one was wearing red and white shoes.
The FBI says the suspects likely frequent the area of 77th and Peoria.