Gilbert Spiller operated from a South Side Chicago neighborhood that he and fellow gang members of the Black P Stone Nation called "Terror Town." Within the gang, he held the rank of "general."

The 37-year-old pleaded guilty last year to two counts of selling crack cocaine and one of illegally selling a firearm. U.S. District Judge Charles Kocoras sentenced Spiller in Chicago on Wednesday.

Prosecutors say Spiller has a criminal history that spans two decades. They say he joined the Black P Stone Nation in grade school and went on to become involved in at least a half-dozen shootings.