John McAfee announces his candidacy for president Sept. 9, 2015, in Opelika, Alabama. McAfee, the outlandish security software pioneer who tried to live life as a hedonistic outsider while running from a host of legal troubles, was found dead in his jail cell near Barcelona, Spain, on June 23, 2021. (Todd J. Van Ernst/Opelika-Auburn News/AP)
John McAfee, of antivirus fame, led eccentric life: Loved drugs and guns, once questioned for murder, twice ran for president. Then died in Spanish prison.
