Washington, September 21 : The ghost-writer who worked on former American football star O. J. Simpson’s book ‘If I Did It’ has revealed that he himself holds the ‘Naked Gun’ star guilty for his wife’s murder.

Pablo Fenjves says that right before he had started co-writing the book, he had told Simpson that he always believed he was responsible for the murders.

"He knew that I thought he was guilty," Contactmusic quoted him as saying.

The writer also said that he is not surprised that Simpson has lately been accused of staging an armed robbery in a hotel suite in Las Vegas.

"It really doesn't surprise me that he thinks the rules do not apply to him," he said.

Ever since Simpson was acquitted of killing his wife Nicole and her friend Ron Goldman in 1994, he has been facing allegations of getting away with the double murder.

‘If I Did It’ carries a hypothetical account of what the former American football star would have done if he was responsible for the double murder. (With inputs from ANI)