Yeah, the people who are dead raised the one who isn't. It's possible - though that doesn't excuse it and doesn't mean they deserved it - that their actions, including sending him to be tortured as a child, contributed to this outcome.

Accordingly, and seeing that we have no real details about this whole situation (either further mitigating or non-mitigating context for anyone involved), I don't think we need to sit here coming up with a numerical ranking of who was the bigger victim.

Edit: It's possible (extreme example) that this had nothing to do with his upbringing. It's also possible (other extreme) that they abused him his whole life and this is the result. We don't know. I find it most likely that this is the tragic outcome of a situation which was allowed to happen by a completely broken society, and I don't think we gain anything from determining a "primary" victim, especially with the limited information available.