[colinmorelli]

> in this specific case

You could have quoted the beginning of the sentence, where the point was about this specific case, and how in this particular case, a gun clearly allowed an assassination that would have been challenging to pull off with a knife.

That is not a way as saying killing someone with a knife is impossible. It's a way of saying that guns allow you to kill people in ways and distances that knives do not.

[carlosjobim]

But what makes this case different? Somebody with a knife could have gotten close to him.