He was far better than he's been given credit for in the mainstream histories. His temper was legendary as well - though he didn't ever let it be his master. In this case, I really can't say that I wouldn't have done the same in his place, can you? The foreign government of (what appeared to him to be) the Western world kills my representatives that I've chosen to be as palatable as possible, and then kills my dearest friend who I sent as a peaceful envoy. Then they send me his head back in a bag and I'm supposed to kowtow to them? Screw that, I'm going to take apart the world if I have to to get at the people responsible.
I'm pretty sure that's how many people would act, as well.
Yes, I'm sure I would too... though women are
often frowned upon for having tempers like men.
Most of what I've been able to find & read relate to his
death & burial, usually making it a big point that his grave
is still unknown to us.... but, that was exactly the idea. Even
then he & his people are portrayed mostly as blood loving.