 GUILTY, THE JUDGE SAYS, HANDING DOWN A 16-YEAR PRISON SENTENCE TO WALL STREET JOURNAL REPORTER EVAN GERSHKOVICH. LOOKING THIN AFTER ALREADY SPENDING MORE THAN A YEAR BEHIND BARS, THE 32-YEAR-OLD RESPONDS WITH A FLICKER OF A SMILE TO THE HURRIED, SECRET TRIAL THE U.S. HAS CONDEMNED AS A SHAM. A SUPPORTER SHOUTS IN RUSSIAN,