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American Gangster - American Gangster returns for a limited engagement as an online exclusive on BET.com. Make sure to get familiar with these notorious names... (Photo: BET)

Photo By Photo: BET

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Tookie Williams - A co-founder of the Crips, Williams was convicted of four murders and ultimately sentenced to death row. While in jail, he began a road to redemption, eventually rejecting gang life and writing a series of anti-gang books.  (Photo: BET)

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LeRoy Nicholas "Nicky" Barnes - One of the top heroin barons in Harlem druing the 1970s, Barnes orchestrated an empire that was estimated to be worth over $100 million during its peak. (Photo: BET)

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Freeway Ricky Ross - One of Los Angeles' most notorious drug dealers, Ricky Ross built a drug empire that brought in roughly $900 million during the 1980s cocaine era. He was released from prison in 2009. (Photo: BET)

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Larry Davis - Davis is known for his run from the law which started with the shooting of six police officers. He was eventually captured and sentenced to 25 to life. (Photo: BET)

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Frank Lucas - The American gangster who was the subject of the 2007 movie American Gangster, Frank Lucas gained notoriety as one of Harlem, NY's heroin  dealers who was in competition with Nicky Barnes. It has been reported that he would have his drugs smuggled directly from Asia through a US Army connection. (Photo: BET) 

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Lorenzo "Fat Cat" Nichols - A notorious Queens, NY, gang leader, his affiliation with Kenneth "Supreme" McGriff made him one of the most notorious drug pushers in the late '80s. (Photo: BET)