Although Druse has steeled himself and regained his resolve, he does not take aim at the rider (whom, unknown to the reader as of yet, he has now identified as his father). Rather, aims for the horse, knowing that the shot will send both horse and rider over the cliff and to their deaths. Seeing no alternative to ending the horseman’s life, Druse either cannot or will not bear the weight of direct responsibility for the man’s life. Rather than his own bullet, he lets the fall from the cliff (and thus, fate) land the killing blow.