Source: Cal. Penal Code § 30510; Cal. Penal Code § 30515; Conn. Gen. Stat. § 53-202a; Del. Code Ann. tit. 11, §§ 1465, 1466; Haw. Rev. Stat. § 134-1; Md. Code Ann., Crim. Law § 4-301; Mass. Gen. Laws ch. 140, § 121; N.J. Stat. Ann. § 13:54-1.2; N.Y. Penal Law § 265.00; R.I. Gen. Laws §§ 11-47.2-1, 11-47.2-2; Rev. Code Wash. (ARCW) §§ 9.41.390, 9.41.010(2)
9/10: Las Vegas, NV, 471 people shot, 60 fatally; Orlando, FL, 102 people shot, 49 fatally; Aurora, CO, 70 people shot, 12 fatally; Highland Park, IL, 53 shot, 7 fatally; El Paso, TX, 46 people shot, 23 fatally; Fort Hood, TX, 45 people shot, 13 fatally; Sutherland Springs, TX, 45 people shot, 25 fatally; Uvalde, TX, 38 people shot, 21 fatally; San Bernardino, CA, 36 people shot, 14 fatally; and Parkland, FL, 34 people shot, 17 fatally. Everytown for Gun Safety Support Fund, “Mass Shootings in America,” accessed January 5, 2023m https://everytownresearch.org/maps/mass-shootings-in-america/.
The mass shooting at Fort Hood is the only incident among these 10 that did not involve an assault weapon. The shooter used a handgun equipped with a high-capacity magazine. Investigators recovered multiple 30-round and 20-round high-capacity ammunition magazines at the scene. “Investigators Detail Ammo Found at Fort Hood Shooting Scene,” Dallas Morning News, October 21, 2010, https://bit.ly/3BmF1kg.
2021 study: Lori Post et al., “Impact of Firearm Surveillance on Gun Control Policy: Regression Discontinuity Analysis,” JMIR Public Health and Surveillance 7, no. 4 (2021): e26042, https://doi.org/10.2196/26042. Study defined mass shooting as four or more victims killed with a firearm at a public location. Familicides and felony killings were excluded.
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