Terrible stuff, any ideas about who it was?

I'll definitely buy Leonard's book, seems like a step above the usual boxing autobiography. Also good that he's waited till well past the end of his career. I can't stand reading autobiographies by guys who've not even been a pro 5 years or someone who still has fights remaining and can make themselves look a right dickhead with the opinions put forward in it *cough Joe Calzage*

That aside, it seems like he's not doing it as a PR stunt and will address his personal problems in depth.