At this point, yeah. There are two effects which corroborate this, one is my confidence on xiz (I wouldn't be pushing to kill one of the three claims without a lot of confidence) and knowing that in order for xiz to claim he had to be prepared to stay outside the AC Room last night, which means DBP being seered in the Dino room clears him.
I don't share your confidence on xiz which is why I was pushing this as a possibility