SELECT Country ,  COUNT(*) FROM perpetrator GROUP BY Country
What are the countries of perpetrators? Show each country and the corresponding number of perpetrators there.
CREATE TABLE "perpetrator" (
"Perpetrator_ID" int,
"People_ID" int,
"Date" text,
"Year" real,
"Location" text,
"Country" text,
"Killed" int,
"Injured" int,
PRIMARY KEY ("Perpetrator_ID"),
FOREIGN KEY ("People_ID") REFERENCES "people"("People_ID")
);
CREATE TABLE "people" (
"People_ID" int,
"Name" text,
"Height" real,
"Weight" real,
"Home Town" text,
PRIMARY KEY ("People_ID")
);
INSERT INTO  "people" VALUES (1,"Ron Baxter","6.4","205","Los Angeles, CA");
INSERT INTO  "perpetrator" VALUES (1,1,"04.26 April 26/27","1982","Uiryeong","South Korea","56","37");