The desk offered a good buffer between the pair. Raph was not consciously aware of it, but the physical separation of the pair offered a bit of 'protection' for him. Usually, these psyche types tried to get all touchy feely in his space which didn't work. Well, not unless they were padded up and he was allowed to use his anger and pain as Isabella had already clued into his preferences.
"...what's there to talk about?" It wasn't said in such a way to close the conversation. Rather, he just didn't seem to understand the question.
"He's ... dead. Died a few weeks ago. Wasn't even much there really..."
And that was somewhat worse for him. He wondered if Zach had had any family that kept up the site. Then again, did it even matter? Zach was just worm food, like the rest of his family. Like every other dead person. Afterlife or not, there wasn't anything left for the body below. It's not like he could ... do anything about it anyway.