Will Smith goes on stage at the Oscars and hits Chris Rock then verbally threatens him from his seat

He's a talker and an 'explainer'. So I just want to hear a more cohesive explanation as to why he thought that was ok.

I've said it before but when people do things so seemingly out-of-character, I immediately wonder what's really going on. Like, inside. Hopefully in the coming days and weeks, he can make it make sense.