British-born U.S. technology entrepreneur John McAfee died on Wednesday by suicide in a Barcelona prison after the Spanish high court authorised his extradition to the United States on tax evasion charges, his lawyer told Reuters. McAfee s lawyer, Javier Villalba, said the anti-virus software pioneer died by hanging as his nine months in prison brought him to despair. During a court hearing last month, McAfee, 75, said that given his age, he would spend the rest of his life in jail if convicted in the United States. I am hoping that the Spanish court will see the injustice of this, he said, adding the United States wants to use me as an example.