The Notre Dame boards on scout and 247 are a buzz that Garnett is down to Stanford and Notre Dame. Which would seem to go along with the tweet below. Most of my Notre Dame friends say his visit to Notre Dame blew him away. If true, a tough break for the good guys.
Edit: Since the people saying this are just regular posters and not insiders, I didn't feel a conflict of interest in posting this. Then this tweet from Steve, seemed to confirm the rumors.