The older sister of Nicole Brown Simpson is set to speak out on new details that have emerged this week about O.J. Simpson's "hypothetical" account of how he would have killed his ex-wife and her friend, Ron Goldman, in an exclusive interview on "Good Morning America."
Denise Brown will address Simpson's now-canceled book, "If I Did It," and his plans for a new book.
This week, Newsweek published obtained excerpts of "If I Did It." The excerpts came from a chapter titled "The Night in Question," and Simpson's account adhered closely with the prosecution's theory of the murders.
In the unpublished account, Simpson writes that his ex-wife charged at him like a "banshee."
"Then something went horribly wrong," Simpson writes, according to the magazine. "And I know what happened, but I can't tell you exactly how."
He writes that he blacked out, and then came to with a bloody knife in his hands and the bodies of Brown Simpson and Goldman lying on the floor.
"If I Did It" included a highly controversial "fictional" account of the night of the murders of Brown Simpson and Goldman. Publisher Judith Regan referred to it as Simpson's "confession."
The book was met with such widespread public outcry that News Corp. chairman Rupert Murdoch canceled publication of the book and a TV special late last year, and publicly apologized to the victim's families.
Last month, Regan was fired.
On Monday, a lawyer for the former gridiron great told ABC News that Simpson wanted to write another book, a nonfiction account about his life with his ex-wife, one of his lawyers tells ABC News. An account of the murders would not be included in this book.
Attorney Yale Galanter says his phone has been "ringing off the hook" with offers to buy a book about Simpson's life with Brown Simpson.
"Everybody, regardless of what they are saying publicly, is interested" in the book, Galanter told ABC News' Law & Justice Unit.
In 1995, Simpson was found not guilty of murder in the slayings of his ex-wife and Goldman in a criminal case. In 1997, a jury in a civil lawsuit found him liable for the deaths and awarded the Goldman and Brown families $33.5 million.
Denise Brown has been an activist against domestic violence since her sister's slaying; she formed The Nicole Brown Charitable Foundation to assist victims of domestic violence.