Talking tv station shooter. Was the guy on anti-depressants? New gun laws would not have stopped this. (except maybe jackbooted thugs going door to door to confiscate guns)
". . . some key [events] exacerbated the national debate, fraying trust, and national cohesion just a little more each time . . . The two-party system that had governed America . . . began to fall apart . . . interest in politics took the place of all other forms of news-related entertainment . . . politicians were the celebrities . . . [Politics/ideology] was becoming such a habit, the reactions so automatic, that [journalists] taking sides on every news story became inevitable."
.. This is from for Love & Liberty by Robin Young and it's a true account of the Civil War. The quote is about 1857 America.