Self inflicted?...................
Nope!
I also think a recent Supreme was in on it.
The stink is strong.
" The deputy said a search of Middleton's vehicle turned up three boxes of buckshot and a gun case – but no weapon."
Possible with a short barrel shotgun but shouldn't be much chest left with buckshot.
As for the firearm disappearing, an unscrupulous individual made have found and made off with it.