Do Kwon, the South Korean crypto baron and fugitive, has been extradited to the United States after going on the run in late 2022. Kwon was the man behind the company Terraform, which ran the cryptocurrencies TerraUSD and Luna, both of which collapsed in 2022. That sparked a contagion in the wider crypto market, and they're estimated to have cost investors $40 billion USD.
Do Kwon fled South Korea shortly after the crash, after an arrest warrant was issued, and eventually pitched up in Montenegro.