Hmm. Well I saw that part, where he "laughed" and that was more of a nervous laughter, rather than a humorous laughter.
Posting the Video depicting a dead person, is what he did wrong.
The "laughing" wasn't much of a "haha look at that dipshit", he was just trying to comfort his employees/friends(idk/idc), as I saw it. It was a way of coping.
Like I said. I think posting the video to begin with, was a grave mistake, but I don't think people should just judge him for that one "joke/laugh".
I mean I don't know the guy, and I don't watch his videos, but I had to take a look myself, because everybody was riding him so hard, I just had to see it for myself.
That, at least, is my opinion/observation.