Stalking, extortion, and swatting are just a sampling of the cybercrimes UK citizen Joseph James O’Connor has confessed to committing — dating back to a spectacular 2020 Twitter caper where he hijacked famous accounts, including Elon Musk’s, to defraud victims.

O’Conner (aka PlugwalkJoe), 23, was extradited from Spain to New York to face charges related to exploitation of social media accounts, online extortion, and cyberstalking, according to the Department of Justice (DoJ).