no one but his wife & kids. While I don't agree with what he has done off the golf course, I also really don't care what he has done off the course because it's HIS life. Those around him (friends & family) that have truly been affected by his behaviour are the only people he needs to apologize to. His actions may have negatively impacted his sponsors, but they can (& have) just pull the plug. As far as the rest of us go -- it's none of our business, in my opinion.
I hope that he gets matters straight between himself, his wife & his kids...and I also hope that he returns soon and continues to do what he does best, what many of us enjoy watching him do -- play golf better than anyone else.
Steve B