Which of the following facts was at the basis of the decision in Holbrook v. Flynn 475 U.S. 560 (1986)? The fact that the trial was closed to the public including the defendant's family. The presence of four uniformed state troopers in the courtroom (acting as supplemental security) during trial which "gave the impression that the defendant was especially dangerous." The use of a confession that was later repudiated by the defendant. The lack of any sort of corroboration of a confession given by the defendant