"Because no matter how you felt about the person or the situation, you still took a human life." And if Rusty hadn't been affected by that, Peter would be very worried.
He finished up the gun he was on, ejected the clip, and then set both parts to the side. "Anytime you want to talk about that, I'm willing to listen," he told Rusty as he started on another one.
"And I'm sure that there are a few others who would listen as well."