Hunter

Noun

1. One who hunts game for sport or for food; a huntsman or huntswoman.
2. A dog used in hunting; a hunting dog.
3. A horse used in hunting, especially a thoroughbred, bred and trained for hunting.
4. One who hunts or seeks after anything.

   "The hunter becomes the hunted."

5. A person who bottles up their aggression and eventually releases it explosively.