Had Zarqawi been willing to surrender, he would have had a fair trial. Instead he evaded capture, continued to murder, and was a mortal threat.
The rules are clear that in that circumstance, letal force is justified.
Zarqawi was part of al Qaida since the early 1990's. He was in Afghanistan when the U.S. attacked, was injured and fled to Iraq in 2002, where Saddam gave him aide and comfort.
Zarqawi's al Qaida cell then assasinated a US diplomat in Jordan in 2002, workig from their base in Iraq.
The 9/11 commission report clearly shows that al Qaida was in Iraq since at least the mid '90s, but concluded that they could not find substantial proof linking Saddam to the 9/11 plot.
There was speculation that a secular Iraq would not support al Qaida, and vice versa, Usama Bin Ladin would not support Saddam. But information quite to the contrary has been released
Seeing the Evil In Front of Us
By Christopher Dickey | Sep 9, 2002
Newsweek
The moment of confrontation had come. President Bush warned Saddam Hussein that if he continued to interfere with United Nations weapons inspectors and to shoot at American warplanes over Iraq, he would have to pay the consequences.
So Islamic radicals from all over the Middle East, Africa and Asia converged on Baghdad to show their solidarity with Iraq in the face of American aggression. Chechens in Persian-lamb hats, Moroccans in caftans, delegates who hailed "from Jakarta to Dakar," as one Senegalese put it, poured into Baghdad's Rashid Hotel, where Saddam's minions urged them to embrace jihad as "the one gate to Paradise."
And the greatest holy warrior of all? "The mujahed Saddam Hussein, who is leading this nation against the nonbelievers," they were told. "Everyone has a task to do, which is to go against the American state," declared Saddam's deputy Ezzat Ibrahim. The Americans had colonized Lebanon; they had colonized Saudi Arabia. But the line against them would be drawn in Iraq. Believers would triumph, said Ibrahim: "Our stand now can lead us to final victory, to Paradise."
That was in January 1993. I was there
http://www.papadoc.net/SeeingtheEvilInFrontofUs.htmlSaddams links to terrorism dating back to at least 1993 have been firmly proven. What has not been proven is if he had a hand in 9/11.