Gbk also known as (Gangster Block Kartel) and are mostly associated with " Bloods" and run most of Roblox hood games and one of the most nitrous gangs in. PITTSBURGH - A member of the Greenway Boy Killas (GBK) gang has been sentenced in federal court to 18 months' imprisonment on his. GBK Gang Member Pleads Guilty in Heroin Trafficking Conspiracy. To be added to our mailing list to receive news and offers, please enter your email address. Harrisburg police arrest man in gang-related shooting that wounded his rival, nearly. “Brett Rodgers is one of 28 members and associates of the violent GBK street gang charged last June with drug trafficking.