How certain our you that the individual in question is a terrorist? Are all Chechens terrorists? I sure hope not, because by that logic, all Iraqis, all Turks, and all Kuwaitis are as well. You'd better be darned sure before you start calling for mass assassinations. If you believe as I do, there will not be 72 virgins when we pass on, but there certainly will be a final judgement by God Almighty!
For example, I would cite the Muslim Imam (Holy Man) who was given sanctuary in the UK in 1984 and who now advocates the abduction and murder of children (like what occurred in Belsan) as an acceptable means of political action as a prime example. You do not "reason" with these monsters. BTW, isn't it curious that we have heard very little from the Islamic Holy community about the Belsan outrage? Actually, I am not surprised in the least. Many, if not most, of these people are the enemy within.