Justo said he and his wife have started writing a book on the matter, which "will be about a personal experience, a journey through hell, about love, friendship and deception".
"A human story... It will not be a 1MDB book, or a financial crime story, for this you have Google, the books about 1MDB and some newspapers," Justo wrote on his Facebook account on Monday (Oct 1).
"We need to tell the truth and to explain what really happened, with all the details showing the ignominy of these criminals.
"Nobody can really imagine that criminals, in order to protect their stolen money, have no limits, no morality, no humanity and who truly they are," he added.
The former Petrosaudi International executive said it will take about a year to write the story, noting that writing a book with "no assistance and with a life to recover is a long and not an easy task".
"It will be a legacy for our son, our families and friends that have shared our sufferings and have been supporting us forever," he said, adding that if there are profits made from the books, part of it will go to Malaysian charities.
Justo also said he has read the Billion Dollar Whale, written by Wall Street Journal reporters Bradley Hope and Tom Wright, and pointed out several corrections.
He also mentioned that he plans to read The Sarawak Report: The Inside Story of the 1MDB Expose by Sarawak Report editor Clare Rewcastle-Brown.
"I consider Clare Rewcastle Brown and Bradley Hope my friends, that’s why I feel right in commenting on their writings concerning me," he added.
Justo is a key figure in the 1MDB issue and it is the information which he shared with Rewcastle-Brown that sparked off investigations into the fund in multiple countries worldwide.
A year into his job in the PetroSaudi office in London, Justo claimed that he had discovered fraud and lavish spending in PetroSaudi, and eventually left the company in April 2011.
In June 2011, he secured the elusive hard drive containing transactions concerning 1MDB from an IT employee of the company to protect himself, as he was a key director who had signed the company documents.
He had pledged to continue to help Malaysia in any way possible, including testifying in trials here.
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