[ It is absolutely out of respect for Akane's dignity that he's not mentioning WHAT was used to strangle Zack, and only that it happened, nothing more. ]

Mm-hm!

[ Considering the peculiar number of things that's happened with Zack so far since he'd woken up there with them? Everything's definitely clicking. ]

It does. Between his unusual strength, not knowing much of anything that most people would and such? I'd guess that the only things changed about him were added memories and a change to his appearance.