I think you probably know which one. Surprisingly, Jimmy Carter was never indicted over those two drifters he killed.

Interesting sidebar:

In the article “Republican rivals, leaders rally around Donald Trump after indictment,” not one single Trump defender suggested he was innocent! All of the defenses are deflections, basically consisting of “Sure he’s a crook, but he’s OUR crook, and those mean old Democrats are just using his guilt as a political weapon.”