Something about knife attacks makes it feel more evil. To be able to stick a knife into someone, I can't explain it, just makes it more psychopathic. Though I believe the citizens should be allowed to own guns, there would probably had been more victims if the terrorist was able to get a hold of guns.
evil people use knives, good people do this:

I'm guessing this is a drone attack, well this is the perfect time to say that drone attacks have been argued to be one of the most humane methods of warfare. May not seem true at first glance, but I think it's much better for both sides to be able to blow up one spot in particular at a particular time with little to no chance of missing the mark. WAIT A SECOND BEFORE YOU SPAM ME WITH LINKS ABOUT INNOCENT PEOPLE DYING IN THESE ATTACKS -- Yes, there are issues with drones as well. But what's better, carpet bombing cities to take out one terrorist or killing a few with precision.