Using a 2 × 2 × 4 experimental design, this study examined the framing of the pro and anti-gun control arguments posited after the Sandy Hook shooting and the resultant effect on persuasion and credibility. Overall, pro-gun control frames were more persuasive and more credible than anti-gun control frames. Arguments transmitted via online news articles elicited more persuasion than those transmitted via Twitter. News article sources were deemed more credible too. I discuss the ramifications within.