Irish Independent July 18, 2003 FBI agent denies he 'invented tissue of lies'  Diarmaid Mac Dermott  FBI agent David Rupert denied yesterday he "concocted and invented a tissue of lies" in his evidence against alleged Real IRA leader Michael McKevitt.  He also denied a suggestion that he had never met McKevitt.  The former trucking company boss and bar owner finished 15 days in the Special Criminal Court witness box after undergoing lengthy, detailed cross-examination by McKevitt's counsel, Hugh Hartnett.  After Mr Rupert completed his evidence, Mr Justice Richard Johnson, presiding at the non-jury court, said: "Thank you, Mr Rupert" and he left the courtroom, flanked by armed detectives.  Prosecuting counsel George Birmingham said Mr Rupert would be available at "24 or 48 hours notice" if required again.  It was the 20th day of the trial of McKevitt (53) of Beech Park, Blackrock, Dundalk, Co Louth, who denies membership of the IRA between August 29, 1999 and March 28, 2001 and directing its activities.