Alcohol rehab doesn't take this long typically. My sense is that the drinking episodes were the tip of an unseen iceberg, formed from childhood on the obsessively heightened expectations of parents who drove him, drove him from age nine, to become what he has become. Stetson got lost - or crushed - in the process.
Read the old book by baseball player Jimmy Piersall, "Fear Strikes Out" or watch the black-and-white movie. Another good one is "The Great Santini." And where are the Japanese so-called Tiger Children of a generation ago, now?
It may be a while before we hear from Bennett. His story will be an interesting and instructive one, if he ever chooses to share it. McVay is doing the right and decent thing by keeping what he knows to himself without throwing any shade at Bennett.