The bullet struck so low down that probably his antagonist would never have aimed at that part of him—people never do; he would have aimed at his chest or head; so that probably the bullet hit him accidentally.
There are no more uses of "antagonist" in the book.
Show samples from other sources
She is my forever antagonist.
Gillian Flynn -- Gone Girl
They could have done him no real harm, of course, but the shock and pain of having a number of his toes nipped simultaneously by an unknown antagonist must have been considerable.