... do you really believe that ? Anyway, what does it change to the problem...

As yet, There has been no definite proof of this. Even if he is dead, there are more likely others who will continue the fight unfortunately. What a pity that there has to be extremists like that around, making life so hard for everyone else.

it is a lie, sure

What I mean is : he is just the guy who carries the banner, if he's dead, someone else will appear.
Incidentally : what happened to Mollah Omar ? Was he somehow wiped off ?