The singer expressed his outrage over the killing in an emotional Instagram post on Sunday.
The officer was fired early Sunday following the fatal shooting, which sparked new waves of protests in the city.
Atlanta Police Chief Erika Shields is stepping down from the role after an officer killed a man authorities claim was resisting arrest.
The network says going forward it will determine how to better tell stories of both the community and officers.
Newly-released video shows Texas man begged 'I can't breathe' during fatal arrest.
The former pop singer, who first went public with her accusations against Carter in November, filed a report with the Santa Monica Police Department on Wednesday.
A gunman opened fire on concert goers near the Mandalay Bay hotel on the Vegas Strip on Sunday.
