Katherine Jackson is finally back in LA, but is she too late? Now that she's been stripped of guardianship, she stands to lose a ton of money from the MJ Estate. Also, the story behind her bizarre "Nightline" appearance. Plus, "Big Brother" villain Willie Hantz gets busted for DUI ... just days after he got kicked off the show for being too violent. Also, the Kristen Stewart cheating scandal hits someone -- besides Robert Pattinson -- really, really, really HARD.