Video shows moments before fatal shooting of Walter Scott

Questions persist about the fatal shooting of a black South Carolina motorist after the release of video taken from the car of the white US police officer charged over the death.

The dashboard camera footage released by state police showed North Charleston officer Michael Thomas Slager pulling over Walter Scott for a broken brake light last weekend.

The video captures the moments leading up to a shooting that has sparked outrage as the latest example of a white police officer killing an unarmed black man.