B) Revenge

People continue to kill elephants-if it's not for ivory, it's for revenge. To a farmer, an elephant can be a 5 ton pest-or an active danger to his life.  If a hungry beast destroys the season's crops, the culprit (or sometimes just the nearest elephants, guilty or not) may be hunted down and forced to pay the price of the damage with its life.
Elephant Killings