The anonymous source behind the leak of the Panama Papers has spoken for the first time, offering to help law authorities make prosecutions in return for immunity.
In a 1,800-word statement , "John Doe" reveals he has never worked for a spy agency or a government.
He starts the statement by citing "income equality" as a motive.
The Panama Papers have shown how some wealthy people use offshore firms to evade tax and avoid sanctions.
The papers belonged to the Mossack Fonseca law firm. It denies any wrongdoing and says it is the victim of a hack.
The papers were investigated by hundreds of investigative journalists, including from the BBC, who worked in secret with the International Consortium of Investigative Journalists (ICIJ) for months.