1. "The investigation which led to the discovery that the wrong men had been convicted was conducted by three journalism students who had been assigned the case in class."
2. "Three former prosecutors have been indicted for obstruction of justice in that case." 3. "The 17 releases over the past three and a half years represents a pace of 4." 4. "Now three prosecutors and four police officers have been indicted for obstruction of justice in this prosecution." 5. "The chief witness against Carriger was a police informant, Robert Dunbar, who was given immunity for three felonies in exchange for his testimony."