a fair statistic should include all murders and all americans...the one OP posted is incomplete...you can not count one group of gangsters while ignoring the others...
the statistics completely ignore the USIS gang...a murderer is a murderer and cherry picking the murder geo location gives inaccurate data...it is the equivalent of "murders on odd days"...or "murders after 6pm"...
also what is worse: a gang member shooting another gang member OR a gang member using chemicals on civilians for 10 years? exactly
OP your murder statistics are incomplete...