Three more Boston men met a tragic, violent death Sunday night in Jamaica Plain. While I can’t speak to the myriad human impulses and environment conditions that make an argument in a pizzeria turn ferocious, I can comment on one contributing factor that makes these kinds of arguments more lethal—an illegally trafficked gun.The fact is that the majority of shootings on our streets are committed by convicted felons and youth who are legally barred from owning guns. In reality, most shootings…See More