From Harlem's purple gang to the Black Liberation Army, retired NYPD lieutenant Kevin Hallinan has worked on some of the most fascinating cases with the New York City Police Department.
Be sure to check out Kevin’s new book on Amazon!
https://www.amazon.com/Over-Wall-Dangerous-Streets-Counterterrorism-ebook/dp/B0B92GN2YR?ref_=ast_author_mpb
From Harlem's purple gang to the Black Liberation Army, retired NYPD lieutenant Kevin Hallinan has worked on some of the most fascinating cases with the New York City Police Department.
Be sure to check out Kevin’s new book on Amazon!
https://www.amazon.com/Over-Wall-Dangerous-Streets-Counterterrorism-ebook/dp/B0B92GN2YR?ref_=ast_author_mpb