michael slager walter scott
The jury deliberated over four days.
Fleeing a traffic stop, Scott was shot by the officer and the incident captured on video.
The Southern States Police Benevolent Association informed Mark Slager four days after the shooting it wouldn't represent him.
Video showed officer Michael Slager firing eight times as Scott ran.
Slager has been jailed since April.
Michael Slager, the South Carolina police officer caught on video shooting an unarmed black man who was running away after a traffic stop, is reportedly heard in new audio laughing about his "pumping" adrenaline immediately after the incident.