"Now, that’s a cracking question to end with -- very good. No, never. If he had, he couldn’t possibly be what he is. You will find out a lot more about that. It is a good question, because it leads us rather neatly to Half Blood Prince, although I repeat for the millionth time that Voldemort is not the half blood prince, which is what a lot of people thought. He is definitely, definitely not." -J.K. Rowling