Professor @TeachersCollege @Columbia (Gun Violence/Public Health & Safety) and Author of Rampage Nation: Securing America from Mass Shootings. Views Are My Own.
Jun 4, 2022 • 8 tweets • 5 min read
Could raising the purchase age for firearms from 18 to 21 reduce active shooting violence at K-12 schools? Probably. Here is a quick explanation of why I believe this change in our gun laws could save students' lives. 🧵 1/
Earlier this year, led by @PaulReeping, my colleagues @sonalirajan, Ali Rowhani-Rahbar, @JustinHeinzePhD, @AprilZeoli, @monikagoyal123, @UmMarcz, @EpiProfCharlie and I published a study on patterns in school shootings over a 20-year period from 1999-2018. 2/
May 28, 2022 • 6 tweets • 2 min read
Did mass shootings decrease during decade of federal assault weapons ban (AWB) and then increase decade after? Despite the wording in this article by @GlennKesslerWP, the data show that—no matter the metric used for mass shootings violence—the answer is yes! 1/ 🧵
If you examine high-fatality mass shootings (HFMS)—6 or more deaths per incident—decade prior to AWB had 19 incidents. This dropped to 12 during ban then jumped to 34 decade after ban. In terms of per capita rates, AWB ushered in 43% drop followed by 156% rise in HFMS rate. 2/
Oct 21, 2019 • 7 tweets • 2 min read
1/ Last week, @AMJPublicHealth published our new study on whether large-capacity magazine bans are effective in reducing high-fatality mass shootings. Our key finding is that LCM bans appear to save lives.
This thread reports some of the key findings.
ajph.aphapublications.org/doi/10.2105/AJ…2/ We examined every known high-fatality mass shooting (6+ killed) between 1990-2017. There were 69 incidents in total. We chose 1990 as our starting point because that was when the first LCM ban was enacted by New Jersey.
Feb 15, 2019 • 11 tweets • 6 min read
A new federal Assault Weapons Ban #HR1296 has been introduced in the House by @davidcicilline (with 190 co-sponsors). As a good deal of evidence in support of such a ban is drawn from my research on the 1994 #AWB, it's worthwhile to review some of my findings. 1/
THREAD FOLLOWS
The 1994 #AWB took effect on Sept. 13, 1994, and it remained in force for exactly 10 years, expiring on Sept. 13, 2004. The primary goal of the 1994 #AWB was to reduce mass shooting violence. The 1994 ban was a direct response to five mass shootings from 1989-1993. 2/
