No, I just don't think Lib knew that people had died at Abu Ghraib to be honest. The humiliation was bad enough, in some cultures, ancient japanese for example, certain kinds of humiliation were worse than death, they became 'non-people', people would commit suicide rather out of dishonour. Some cultures are still like that.
But I think Liberator is angry, and rightly so, just as you are justifiably angry at the horrors of Abu Ghraib. The hard part, and I mean the really hard part, is how to see past that anger and start to diminish it. At the moment, that is not going to happen, the wound is too fresh.