I agree with you choki. The prophecy clearly states that either Harry of Voldemort must eventually be killed by the other one. And something will always come and save Harry from dying.
It must be horrible for Harry, when you think of it. He must either murder of be murdered. Not exactly great news ... But I wonder if Harry is even capable of murder. Like Crouck Jr (fake Moody) said, even if the whole class pointed their wands at him and said 'Avada Kedavra' he wouldn't get as much as a nose bleed. I wonder how will Harry kill Voldemort then, he can't exacly go around practising the Killing Curse, now can he?
* Stardust *