-- Database schema
| perpetrator : Perpetrator_ID [ INT ] primary_key , People_ID [ INT ] perpetrator.People_ID = people.People_ID , Date [ TEXT ] , Year [ INT ] , Location [ TEXT ] , Country [ TEXT ] , Killed [ INT ] , Injured [ INT ] | people : People_ID [ INT ] primary_key , Name [ TEXT ] , Height [ INT ] , Weight [ INT ] , Home Town [ TEXT ] |
-- -- What is the country that has the most perpetrators?

SELECT Country ,  COUNT(*) FROM perpetrator GROUP BY Country ORDER BY COUNT(*) DESC LIMIT 1;