CREATE TABLE table_12271 ("Shooter" TEXT, "Event" TEXT, "Rank points" TEXT, "Score points" TEXT, "Total" TEXT)

Who is the shooter at the WC Rio De Janeiro event with 10 rank points?
SELECT "Shooter" FROM table_12271 WHERE "Event" = 'wc rio de janeiro' AND "Rank points" = '10'
SELECT "Shooter" FROM "table_12271" WHERE "Event" = 'wc rio de janeiro' AND "Rank points" = '10'