"...Gun violence researchers say that no law can
eliminate the risk of mass shootings, which are unpredictable and
represent a small minority of gun homicides over all. But there are a
handful of policies that could reduce the likelihood of such events, or
reduce the number of people killed when such shootings do occur. And
several of them have strong public support."
See the rest of the article here... https://www.nytimes.com/interactive/2017/10/05/upshot/how-to-reduce-mass-shooting-deaths-experts-say-these-gun-laws-could-help.html