Hours after Spanish Court approved the extradition of John McAfee to USA, the creator of Antivirus was found dead in his Brians 2 prison cell.
Authorities said the cause of death was being investigated.
The US Department of Justice (DOJ) is also aware of the situation, as McAfee was pending to be extradited to the United States after being detained by the Spanish police past year in the El Prat Airport.
He said in 2019 that he had not paid USA income taxes for eight years for ideological reasons.
As reported by news source, The department of justice in a statement said, "Everything indicates that it could be a death by suicide". McAfee was arrested last October and has long maintained that the tax evasion charges were motivated by politics.
The decision could still have been appealed and the extradition would also have needed approval from the Spanish cabinet.
The 75-year-old antivirus software founder had initially been detained by Spanish law enforcement officials in October 2020 while at the Barcelona airport.
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A view of the courtroom during the extradition hearing of John McAfee (not pictured), in Madrid earlier this month.
He twice ran long-shot bids for USA president and was a participant in Libertarian Party presidential debates in 2016.
In July 2019, McAfee was released from detention in the Dominican Republic after he and five others were suspected of traveling on a yacht carrying high-caliber weapons, ammunition and military-style gear, officials on the Caribbean island said at the time.
He allegedly failed to file taxes for four years despite earning millions in income between 2014 and 2018 from promoting cryptocurrencies, consulting work, speaking engagements, and selling the rights to his life story for a documentary, according to court documents.
US federal prosecutors unsealed an indictment in October against McAfee over charges that he evaded taxes and wilfully failed to file returns.
The last post from McAfee's Twitter account was a retweet of a Father's Day message from his wife Janice McAfee.
In Washington, the IRS did not immediately respond to a request for comment.