The incomparable Ed Morrissey:
Criminals rarely go to the trouble of applying for gun permits…
…Dzhokhar [Tsarnaev] was already ineligible for a handgun license, being under 21, and Tamerlan probably would have been ineligible because of his conviction for domestic assault. Did those laws prevent the Tsarnaevs from getting handguns and explosives? That’s a rhetorical question, unless you’ve been asleep for a week.