I could make an attempt at humor and say ‘spetznaz’ BUT there is nothing funny about federal killers being deployed against American Citizens.
I suspect I will catch hell for recommending TV, but I am.
Specifically, I recommend watching the series The Wire. I am not only watching but studying the series in an attempt to see and understand an even fictional account of the phenomena you noted. There are a lot of different factors involved in the deaths of negro young men (and women) at root related to drugs.
The series lasted 5 years so there are ~60 episodes. They focus on different aspects of life in Baltimore viewed through the actions of a special police unit charged with arresting drug dealers. The urban drug culture is the recurring theme year to year. In different years, different themes are the focus. Police bureaucratic incompetence, city hall politics, union corruption, and a host of lesser aspects combine to describe failure of the entity that is the American city. However, the well drawn and recurring characters in the drug trade carry through from year to year.
The Wire is an outstanding series and is well worth the effort to find and then watch in detail.