The implementation of Florida’s Shoot First law was associated with a 32 percent increase in monthly firearm homicide rates.

David K. Humphreys, Antonio Gasparrini, and Douglas J. Wiebe, “Evaluating the Impact of Florida’s ‘Stand Your Ground’ Self-Defense Law on Homicide and Suicide by Firearm: An Interrupted Time Series Study,” JAMA Internal Medicine 177, no. 1 (January 2017): 44–50, https://doi.org/10.1001/jamainternmed.2016.6811.