John McAfee, Antivirus Pioneer, Found Dead in Spanish Prison Cell: Officials

Millionaire's lawyer says he died via hanging

U.S. millionaire John McAfee gestures during an interview with AFP on his yacht anchored at the Marina Hemingway in Havana, on June 26, 2019. Adalberto Roque/AFP via Getty Images

Antivirus software entrepreneur John McAfee, who was known for his outlandish lifestyle, was found dead in a Spanish prison cell after a court had authorized his extradition back to the United States. He was 75.

The Catalan justice department confirmed his death to news outlets and confirmed earlier reports from El Mundo and El Pais newspapers.