I don't think so. In Canada, the law is the law, regardless of wealth. He would have been arrested, charged, and his lawyers would have had to argue "heat of passion". That's typically a 10 year sentence. At best, he could be deemed mentally incapable at the moment of committing murder, and that would have earned him a few years in a psychiatric institution. Either way, his reputation would have been completely destroyed. Today, his family is doing everything they can to preserve his reputation as a philanthropist rather than a murderer, including hiring a team of lawyers, a retired detective and whoever else they need to keep the husband's reputation as clean as possible.