If you were Harry would you have killed Bellatrix after she killed Sirius?

I would have wanted too and I'm sure he did too. He was not given the opportunity. He was also always torn because he was so afraid he was bad or was capable of evil. That alone may have prevented him, and also the fact that he was good. If he could have as soon as Siriius was killed, I think he would have, because of the love he had for Sirius and that Sirius was his only "family" he had left.