I already knew about this, but this article has several examples of shootings involving legal drugs. We do not see anyone trying to ban these profitable legal drugs that have terrible side effects.
https://www.lewrockwell.com/2015/06/no_author/every-mass-shooting-has-one-thing-in-common/
https://www.lewrockwell.com/2015/06/no_author/every-mass-shooting-has-one-thing-in-common/