SELECT LOCATION FROM perpetrator ORDER BY Killed DESC LIMIT 1
What is the location of the perpetrator with the largest kills.
[Schema (values) (types)]: | perpetrator |  perpetrator : perpetrator_id (text) , people_id (number) , date (number) , year (text) , location (number) , country (text) , killed (text) , injured (number) | people : people_id (text) , name (number) , height (number) , weight (text) , home town (number);