50% of the murders are committed by 3% of the population...
Close enough. 12.5% of the US population is Black. 2.4% of the US population are Black males between 13 and 40 years old. Said 2.4% commit 40+% of all murders in the US. They kill with pistols and they kill other Black Americans with a high frequency.
http://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2011/crime-in-the-u.s.-2011/tables/expanded-homicide-data-table-3
“Thank God We Got Penitentiaries.” - Richard Pryor