“he poisoned that kid”
Walt’s a sociopath! It all really is about him, and everyone else is just a tool.
By now he's a master manipulator.
In the first of the new ones Marie says to Walt (laughing) "You're the devil" in the preview for next week's Jesse says "he's (Walt) the devil. I think we all get that point now. Walt, through his deeds has become totally evil and beyond redemption.