July 20, 2012
James Holmes, 24 Aurora, CO Purchased an assault rifle at a gun store in Colorado and more than 5,000 rounds online.
12
killed, 58 wounded
Dec. 14, 2012
Adam Lanza, 20 Newtown, CT Used a traditional rifle and an AR-15, both of which were purchased legally by his mother.
27
killed, 2 wounded
June 7, 2013
John Zawahri, 23 Santa Monica Bypassed state regulations by uilding his own R-15 out of comonent parts he bought online.
5
killed, 2 wounded
July 16, 2015
Mohammod Youssef Abdulazeez, 24 Chattanooga, TN Opened fire on two military centers with a weapon he bought online.
5
killed, 2 wounded
Oct. 1, 2015
Chris Harper-Mercer, 26 Roseburg, OR Obtained weapons from family members and a licensed firearms dealer.
9
killed, 9 wounded…
