Do you think Harry could cast an Avada Kedavra?

[jenny_ravenclaw]

No: HPFGUIDX 41763

Before I respond to John's questions, I'm going to be geistly for a 
moment and remind everyone to please change the subject if your post 
goes off on a tangent, as have most of the responses to John's Avada 
Kedavra question.

--- In HPforGrownups at y..., "johnryanmcc" <johnryanmcc at y...> wrote:

> When Barty Crouch Jr. as Moody said the entire class could point 
their wands at him and cast the Avada Kedavra curse without even 
giving him a nosebleed, don't you think it would have been amusing if  
Harry had cast one?  After all, he was able to cast the very advanced  
Expecto Patronum spell with impressive results, driving away not just  
one but multiple dementors.>

Amusing if he killed someone?  I wouldn't say that, but these are 
interesting questions.  Here's the thing I wonder about Avada Kedavra: 
what kind of concentration does it take for it to work?  Does one have 
to think "I want to kill this guy!" for the curse to work?  Avada 
Kedavra isn't even like the other unforgiveables.  It is the mother of 
all curses.  Would Dumbledore be able to cast Avada Kedavra?  I ask 
this because I have a very hard time envisioning Dumbledore doing 
something so lasting and damaging as Avada Kedavra, or even wanting 
to.  I suppose I see Harry the same way.  When he had the opportunity 
to kill Sirius (or at least to hurt him badly), he couldn't do it.  
Maybe Avada Kedavra has as much to do with the person casting it as it 
does with the words as well as the effect.  It's like holding a gun in 
your hand that is pointing at the heart of someone you hate.  Could 
you pull the trigger?  I couldn't.

I'm not helping here.  I guess now I'm wondering as much as John what 
people think it takes to cast Avada Kedavra.

--jenny from ravenclaw, who doubts she'd ever be able to cast Avada 
Kedavra and doesn't mind ********************