What is straw purchasing a gun? And how will tackling it slow the flow of guns in Philadelphia?

More than a dozen people were shot and two died in a series of violent incidents in Philadelphia this past weekend.

Sales of the homemade firearms grew exponentially after kits that let people easily build them at home came on the market, Justice Neil Gorsuch wrote in the majority opinion.

Three more BNG members entered guilty pleas for murders and related offenses, and could be spending much or all of their remaining lives in prison.