Antivirus pioneer John McAfee found dead in Spanish prison

John McAfee, the creator of McAfee antivirus software, was found dead in his jail cell near Barcelona in an apparent suicide Wednesday, hours after a Spanish court approved his extradition to the United States to face tax charges punishable by decades in prison, authorities said.

The eccentric cryptocurrency promoter and tax opponent whose history of legal troubles spanned from Tennessee to Central America to the Caribbean was discovered at the Brians 2 penitentiary in northeastern Spain. Security personnel tried to revive him, but the jail’s medical team finally certified his...