CREATE TABLE people (People_ID INT, Name TEXT, Height FLOAT, Weight FLOAT, "Home Town" TEXT)
CREATE TABLE perpetrator (Perpetrator_ID INT, People_ID INT, Date TEXT, Year FLOAT, Location TEXT, Country TEXT, Killed INT, Injured INT)

Visualize a pie chart with what are the countries of perpetrators? Show each country and the corresponding number of perpetrators there.
SELECT Country, COUNT(*) FROM perpetrator GROUP BY Country
SELECT "Country", COUNT(*) FROM "perpetrator" GROUP BY "Country"