Canada based author Jimmy Tobin looked long and hard at the death of Arturo Gatti, a fighter who positively exemplified a 'never say die' attitude. Under curious circumstances, the pugilist perished in 2009. Did he kill himself? Was he offed? Will we every truly know? Talkbox digs in with Tobin about the Gatti legacy, which he examined in the forthcoming book "Killed in Brazil: The Mysterious Death of Arturo 'Thunder' Gatti."