LATEST: The author of an unauthorised biography of rocker 'DIMEBAG' Darrell Abbott has dismissed criticism by the slain guitarist's family that he has no business writing the book. Music journalist Zac Crain's forthcoming biography Black Tooth Grin: The High Life, Good Times, And Tragic End Of 'Dimebag' Darrell Abbott chronicles the guitarist's rise with heavy metal supergroup Pantera. Abbott was shot dead by an obsessed fan at the Alrosa Villa nightclub in Columbus, Ohio during a Damageplan show in December 2004. His family recently released a statement reading: "Mr. Crain did not know Dimebag personally. Mr. Crain's request to the family was denied." But Crain hits back: "The idea for the book wasn't to cash in on a tragedy, but to do what I could, given my assignment, to let people outside of the metal/hard rock community know about him. "I'm sure, outside of that world, the first that people ever heard of him was on CNN. It didn't seem right to let some moron with a gun have the last word. "Darrell had a great story to tell, and I spent a year doing my best to tell it. I did everything I could to involve Vinnie (Paul, Abbot's bandmate and brother) and Rita (Abbot's longtime girlfriend). They didn't want to participate, and I understand. No hard feelings on my end. "As for the money, people should know that I plan on donating a percentage to the Dimebag tribute fund. I told Vinnie that at the beginning, and I'm a man of my word, whether he believes that or not."