> he said please don't shoot or i won't shoot you. he said whites don't kill whites. >> reporter: what do you think about what was said? >> it hurts. it's sad. it's terrible. people have the right to just exist. >> reporter: the suspect police say could have caused far more carnage. pastor kevin nelson says a parishioner saw him earlier at their church door. >> he bangs on it and then he backs up with his had on the gun. whoever would have opened it would have possibly gotten shot and killed. >> reporter: his church began looking its doors after dylann roof massacred nine people in this church as they prayed. ken parking knows something about the hate that motivated dylan ruth, a navy veteran and without work and direction he joined the ku klux klan and