Source 1: David Hemenway, “Off the Cuff: What don’t we know about the causes of gun violence? Almost everything. ” Harvard Public Health, www.hsph.harvard.edu/magazine/magazine_article/off-the-cuff-what-dont-we-know-about-the-causes-of-gun-violence-almost-everything/. Accessed November 2021

Source 2: Nigel, Chiwaya. “Gun violence is up. It’s been up for more than a year.” April 26. 2021, www.nbcnews.com/news/us-news/compare-gun-violence-2021-n1265201.  Updated May 5, 2021

Source 3:

EWTN. “ The root Causes of Gun Violence and School Shootings.” Youtube,uploadesby EWTN, 6 june 2018,