Businessman Eike Batista had a net worth in excess of $30 billion five years ago.
Eike Batista, once Brazil's richest man and most flamboyant national booster, was detained by federal police on Monday on allegations of bribing a former governor, putting an end to his brief stint as an international fugitive. Mr Batista, a brash entrepreneur whose meteoric rise and fall made him the poster boy of Brazil's decade-long boom before the global commodities crash, flew overnight from New York to Rio de Janeiro, where police had raided his luxury home on Thursday.
The 60-year-old businessman, who has sold or forfeited his stakes in the energy, mining and logistics empire known as EBX Group, was once married to a Carnival queen and is the son of a former chief executive officer of mining company Vale SA.
Five years ago, he had a net worth exceeding $30 billion and was considered one of the world's 10 richest people. On Monday, he had his hair implants shaved off before he was locked in a shared cell in Rio's notorious Bangu prison, authorities said.
"I am returning to answer to the courts, as is my duty," Mr Batista told the Globo television network at New York's John F Kennedy International Airport. "It's time for me to clear this up."
In May, Mr Batista showed up at the southern Brazil offices of federal prosecutors, who are leading a huge probe into political kickbacks made by scores of major companies in return for lucrative contracts from state-run oil company Petroleo Brasileiro SA.
Mr Batista told prosecutors at the time that former Finance Minister Guido Mantega had requested, and he had made, a contribution of 5 million reais ($1.60 million) to cover debts from the successful 2010 presidential campaign of former president Dilma Rousseff, who was impeached last year for breaking budget rules.
Mr Mantega was charged with corruption in September, due in large part to Mr Batista's testimony, prosecutors said. Both Mr Mantega and Ms Rousseff deny wrongdoing.
The sweeping corruption investigation, which now covers several state-run companies, has jailed prestigious CEOs and major political figures, convicted more than 80 people and confirmed some $2 billion in bribes paid over several years.
New testimony from plea bargains approved on Monday is expected to implicate more than 100 sitting politicians.
"I think federal prosecutors are cleaning up Brazil in a fantastic manner," Mr Batista told Globo TV. "The Brazil that is being born now will be different."
He added that he never intended to flee and was in New York on business. Mr Batista declined to answer a reporter's question about whether he considered himself guilty or innocent.
Mr Batista's lawyer, Fernando Martins, told reporters outside a prison where the businessmen initially was taken that he had not yet spoken with his client but that he was worried about his safety.
Inmates with a college degree, which Mr Batista lacks, are usually separated from the rest of the population in Brazil's crowded prison system, where a series of violent riots have erupted this year.
A former wildcat gold miner, Mr Batista attracted ravenous demand for shares in his mining and energy ventures, which were forced into bankruptcy court as oil and mineral prices crashed.
Police accuse Mr Batista of paying $16 million to former Rio Governor Sergio Cabral in exchange for support of the businessman's many Rio-based endeavors. He has not yet been formally charged.
Mr Cabral, who resigned from office in 2014, has been jailed since last year in connection with other corruption charges. His lawyers have denied he committed any crimes.
The oil companies OGX Petroleo e Gas SA and Oleo e Gas Participacoes SA and mining company MMX, which were founded by Batista, said on Monday that he no longer held administrative roles, and his arrest would have no impact on them.
© Thomson Reuters 2017