We shall, probably, never know who, ultimately, caused the death of General Aidid, RIP. The only thing not in dispute in this matter though, is that Aidid has , pretty much, died as he lived, by the barrel of a gun.
I will go with number 3 for this is the guy that set the Western imperialist a decade back from invading other peoples countries AUN a true lion. If only Barre didn't put him in solidarity confinements for years which changed his way of thinking.