User blog comment:Xilinoc/Ch. 542 - THE BLADE IS ME/@comment-11051098-20130619142823/@comment-5398287-20130620153127

Well, when he was broken out of the Dangai by Akon, Shaz Domino was in the same room, having taken down the assistants and Akon. There's a segment which shows the events leading up to the explosion above Yhwach's and in it, Shaz Domino sees someone (Ichigo), asks who he is, and begins introducing himself. He's cut off in the middle of his sentence about his powers, and the explosion occurs at the same time, so it's heavily implied Ichigo attacked him, though I'm not so sure about him killing him.