Former South Carolina officer was found guilty of murder and obstruction of justice in 2015 shooting death.
Ten recent deaths caused by police show a correlation between the size of the award and culpability.
The trials of Michael Slager, a white, ex-cop accused of murdering unarmed Walter Scott, and Dylann Roof, accused of a church massacre, take place across the street from each other.
Michael Slager could face life in prison for the April 4, 2015 death of Walter Scott.
Scott, 50, was shot after fleeing a traffic stop in April.
Michael Slager allegedly tased another unarmed black man in 2013 without proper cause.
According to video evidence, the officer, Michael Thomas Slager, shot Scott in the back on Saturday.
Dozens of protesters in North Charleston said the death of 50-year-old Walter Scott should not be viewed as an isolated incident.
A video taken by a bystander appears to show officer Michael T. Slager firing multiple times at Walter L. Scott as he ran away.