I (the author) cross-posted this to medium, since apparently comments on facebook notes are not public: <a href="https:&#x2F;&#x2F;medium.com&#x2F;@sbuss&#x2F;gun-violence-research-f20b2adc18cb" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;@sbuss&#x2F;gun-violence-research-f20b2adc18cb</a>