In the first draft of Robert Liparulo's thriller Comes a Horseman, the coprotagonists-FBI agents Brady Moore and Alicia Wagner-were helped out of a particularly hairy situation by police sniper Byron Stone. Byron was a moody fellow, renowned as much for his reticence as for his skill with a rifle. Ultimately, pacing considerations trumped Liparulo's (and early readers') affection for Byron, and his scenes wound up being edited out.
Byron, of course, wasn't happy. He nagged at the edges of Liparulo's mind, always asking the same questions: What makes me so gloomy? How did I become so proficient with a gun? What's my story? After a while, Liparulo started jotting down answers, eventually explaining Byron's life in the notes, outlines and fragments of three yet-unwritten thrillers- Recoil, Recon and Return.
While Byron Stone draws blood from Liparulo's own heart, he's also a compilation of Liparulo's acquaintances, including a SWAT sniper and an FBI sniper (imagine their disagreements). These two shared the qualities of quiet, nearly impenetrable machismo and subtly troubled spirits. The taking of lives made them each respect life that much more.
They would kill only when it would save more lives, or a more innocent life. But this creed allowed them only to pull the trigger. Bad guy or not, a life is a life, and to hell with how tough snipers act, their souls ache for each of the ones they ended.
A sniper's knowledge that his job is necessary, crashing headlong into his humanity-this was the conflict Liparulo wanted to explore with Byron. Kill Zone does not answer all of Byron's questions, but it opens a window on the police sniper's moral struggle.