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Mark Karpeles, former Mt Gox CEO, acquitted of most charges in major bitcoin case

CNN logo CNN 3/15/2019 By Sherisse Pham, CNN Business
Mark Karpelès standing in front of a window: Former Mt. Gox CEO Mark Karpeles was arrested in 2015.© Will Ripley/CNN Former Mt. Gox CEO Mark Karpeles was arrested in 2015.

The man who oversaw the collapse of a giant bitcoin exchange was found guilty Friday of falsifying data but acquitted of other charges, meaning he's unlikely to go to prison.

French businessman Mark Karpeles was the owner and CEO of Mt. Gox, which was once the biggest cryptocurrency exchange in the world. Based in Japan, the company imploded in 2014 after losing nearly $500 million worth of bitcoin belonging to investors.

Tokyo prosecutors had indicted Karpeles on a series of charges, including embezzlement and aggravated breach of trust, and called for a 10-year prison sentence. But the Tokyo District Court on Friday found Karpeles not guilty of the other charges and handed down a suspended prison sentence for the falsification conviction. The court also ordered him to pay for part of the cost of the trial.

Karpeles, 33, was found guilty of illegally altering Mt. Gox's electronic records to falsely inflate the company's holdings by $33.5 million. He was sentenced to 2½ years in prison with a 4-year suspension, which means he won't have to serve time unless he commits a criminal act in the next four years.

Karpeles's acquittal on the more serious allegations of embezzlement and aggravated breach of trust was a surprise. The conviction rate in Japan after prosecutors file criminal charges is above 99%.

"I am happy to be judged not guilty for embezzlement and breach of trust," Karpeles said in a statement to CNN. "I will discuss with my lawyers and decide how to proceed on the remaining charge."

He had maintained his innocence throughout the trial, blaming a computer hack for Mt. Gox's loss of 850,000 bitcoins belonging to its users in 2014. At the time, the huge cryptocurrency hoard was worth about $470 million.

But the company, at the time the world's largest bitcoin exchange, was already in dire financial straits before the alleged hack. Mt. Gox was struggling with its cash flow after US government agents seized $5 million from its accounts in 2013 for allegedly lying on bank documents. That sum was 13 times the amount of revenue the company collected over most of the previous year.

The loss of the massive stash of users' bitcoins in 2014 plunged Mt. Gox into bankruptcy and left behind some 30,000 angry investors.

Karpeles was arrested in Tokyo in 2015 and spent more than 11 months in custody.

In an interview with CNN last month, he described his time in detention in Japan as a "nightmare." He said that police interrogated him for 50 days straight without a single day off, and that he often considered pleading guilty just to end the ordeal.

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