jordan davis's young life has marked the beginning of a new one for his parents, ron davis and lucia mcbath, as outspoken activists for gun reform. >> we know that god has greater purpose for jordan's death and for what we're now doing. >> why aren't you tired? why haven't you decided, you know what, i lost my boy, we got justice in court, i'm just going to move on? >> jordan is driving me. when you say don't you get tired, all i have is my words to change people's minds to stop people from killing, especially killing these kids when murdering society, and we're murdering our tomorrow. >> you're an optimistic man still, though, despite all that you've endured, all that you've seen. >> yeah. because god has shown me the journey. some of us we go through life. we never know why we're here. >> why are we here? >> i'm here to spread the word of my son, who was martyred, basically. and spread the word that this country cannot continue the way it's continuing. that we have to put lives in front of guns, lives i front of finances, lives in front of everything that we have to educate ourselves and