Yep. We need more stringent gun laws to prevent people like this, who don't respect our laws, from carrying guns.
/s
Their attorneys should raise the 2nd amendment issue of why Massachusetts requires a license, which is often not issued based on the sole discretion of a local police chief, to merely purchase a firearm and keep it at home, or to possess it in any way. And add to that the issue of Massachusetts applying that law to people who are just passing through the state.