Ali Shamkhani, just based on his Wikipedia page, openly stated on several occasions that he intended to build nukes and that he regretted not building them and nuking Israel and the US in the 90s.
He was also a high ranking military leader in Iran, which implies that he commanded, or maybe organized, but at the very least funded terror in Gaza, Israel, the US, Australia, France, etc.
I don't see that as a negotiator any more than the assassins who finally killed him were negotiators.
And yes, I was talking about Hamas, Hezbollah, and other Islamic Revolution export efforts stemming from the Islamic Republic government in Iran.
You'd be surprised if you knew what many American leaders and generals thought about using nukes.
Whatever you say is besides the point, there's plenty of war crimes and terrorism to go around on both sides. Israel kills negotiators during an active negotiation. They have no interest in solving this other than Iran becoming a failed state. They are manufacturing this situation, its been the goal of Netanyahu for 4 decades, and he was there in congress to lie about WMDs when Iraq was attacked.
Did you just not know that or you would still call that negotiating?