Hmm.. no one can really know but him. His words did sound adequately apologetic, but it could have simply been an economic move--not apologizing would dramatically hurt his business.
Honestly, we buy from and interact with people we hardly know all the time. Can you say for sure your barber is a good person? The local restaurant owner? Your neighbor down the street? Would you stop utilizing someone's services (even if they had the best prices) just because you knew their flaws?
Point is, until we're faced with evidence to the contrary, there's no reason to boycott Star's products. He claims he's changed, and our justice system has an "innocent until proven guilty" policy. Let's believe in the best of him unless he proves his words to be a farce with future transgressions.