Apparently, bulletproof backpacks, rather than stricter gun laws, is now the solution to school shootings

 

NBC News, 8/21/2019

The efficacy of bulletproof backpacks being marketed to students and parents was put to the test by Scott Reitz, a firearms instructor with the Los Angeles Police Department, in a demonstration for NBC News Los Angeles. 

The “Guard Dog Security ProShield II” bulletproof backpack, rated Level IIIA, was mounted to a mannequin torso in a t-shirt and placed on a firing range. 

Reitz fired at the backpack with a 9 mm pistol and with a .45-caliber handgun.Both shots penetrated the backpack’s exterior and inner fabric, but were stopped by the back panel armor. 

Then, Reitz fired two shots from an AR-15 rifle, the civilian model of the U.S. military's M16, used in some recent mass shootings. Both went completely through the back panel and, with a flicker of the shirt, exited the mannequin’s back. [emphasis added]

Simple physics explains how the bullets went through the bag.