Eccentric tech millionaire John McAfee has been arrested in Tennessee after being caught driving under the influence and for illegal gun possession, police say. McAfee, who created the virus-scanning software by the same name, was found driving erratically along a road in Henderson County on Sunday night and was arrested, police said. McAfee later admitted to being under the influence of Xanax, but said it was a new prescription and he was not aware it would impair his driving.