Ryland - I'm not sure where they fell from, though they said they were climbing Castle Crags. There is a ramp below the pinnacles up there which might be where they were. Needless to say, it was a long fall.
dmuja1 - It's unclear if they had pro in or not. At least one screw was picked up in the debris strewn across the headwall. Unfortunately, Mt. Hood is not known for solid screws and most ice is rime ice - often only protectable by slings and pickets used in unusual ways, or weaving the rope through the ice. It was also hot up there. Perhaps they were balling up a bit and that contributed to a slip.
Perhaps it is inappropriate to rope up w/o pro in many places, but sometimes you just wind up in that situation. I don't know if that was the case here. Sometimes s. happens.