When you study the mind of a criminal you might determine that these factions chose these days for their violence for certain reasons. 1. Possibly it was the easiest way to kill more people at once since they were congregated in one place. 2. Men would be unarmed (possibly it was sacreligious to have weapons in a holy place). 3. Strictly for the psyhcological impact. How tragic to lose a loved on on a holiday. It's bad enough to have to suffer the death of a love one, but when it occurs on a holiday you will be forever reminded of his/her brutal death when you try to celebrate the holiday each year afterwards. A criminology group could brainstorm and come up with many more reasons for picking holidays for attacks. It's amazing how intelligent and cunning these ruthless and brutal minds can be. All the more reason we law abidding citizens should study them, past and present so we can be on our guard to protect ourselves from them. These topics may not be for the tender at heart or the politically correct. However, it is our duty to ourselves and our future generations to study the history of criminal acts. Just MHO. Lonny Watro