https://www.hawaii.edu/powerkills/20TH.HTM
It would take in the hundreds of centuries for American criminals and psychotic school shooters to equal the millions of people murdered murdered by Mao Zedong’s Communist Chinese government from 1949 to 1976, not to mention Stalin in the USSR from 1926 to 1953, Hitler in Nazi Germany from 1933 to 1945, and Pol Pot in Cambodia from 1975 to 1979.