Board Thread:General Discussion/@comment-2211792-20130814091737/@comment-15519592-20130815182530

Well, the real question is, where they technically killed by his power, or were they killed as a result of him taking their power?

If they died as a result of him stealing their power, technically they would have died of something akin to 'blood loss.' If he killed them first and then took their power, than I would agree their souls were lost like a hollow's when killed by a Quincy.

Think of it this way, if he ran them over with a car they would still go to Soul Society, even though he killed them. It's the Quincy Power itself that destroys the soul, although it is yet to be explained why or how.