"It can be discouraging, when someone else falls victim to gun violence," he says. "I mean it definitely can be discouraging. But, at the same time, it's a marathon, without a doubt. And that's something that I've learned as I began to get more and more involved. It's a marathon and it's something that's going to take time. We need to understand that, but realize that every chance you get to change someone's mind, a decision, or a life, every chance that you get is well worth it."