Dad charged with murder after killed drunk driver that had just killed his sons.

Manslaughter at best. No way a jury convicts him of murder. He didn't intentionally set out to shoot the driver nor was he acting in a way to bring undue risk to the driver. He reacted out of emotion to an action by the driver that caused traumatic emotional and physical stress.

I got no problem with it, I'm not in his shoes. He'll answer for his actions and I would suspect he is ok with that. I'd like to say I'd do things differently, but in that situation, if I had the means, I don't know that I would.