On the other hand, prior to the war Sickles also murdered Philip Barton Key, son of the author of the Star Spangled Banner. Key was having an affair with Sickles' wife. Sickles got himself off by pleading temporary insanity. Maybe it wasn't so temporary after all?
Your humble narrator is distantly related to the Keys.
Walt
I just looked it up and I was thinking of Sedgwick at Antietam, had a brigade in Sumner's division. Marched right up to Jackson and never saw him lying in wait behind some rock ledges, got 2500 KIA in 20 minutes. Meanwhile, his supporting brigade had gotten drawn off to the left somewhere by a Confederate skirmish line and was no longer in support when everything hit the fan (of course) -- that was French's.