Anti-virus software entrepreneur John McAfee has been found dead in a Barcelona prison cell hours after a Spanish court agreed to extradite him to the US to face tax evasion charges.
The Catalan justice department said medics had tried to resuscitate the 75-year-old, but were not successful.
McAfee VirusScan helped to spark a multi-billion dollar industry in the computer world, and was eventually sold to technology giant Intel for more than $7.6bn.
John McAfee was arrested in Spain in October 2020 when he was about to board a plane to Turkey, and accused of failing to file tax returns for four years, despite earning millions from consulting work, speaking engagements, crypto-currencies and selling the rights to his life story.