In his January 17, 1995, letter of resignation to the head of the Office of the Independent Counsel, Kenneth Starr, lead investigator, Miquel Rodriquez, expressed his frustration at not being permitted to pursue tantalizing leads in his investigation of the gunshot death of Bill Clinton's Deputy White House Counsel, Vincent W. Foster, Jr.
...I told [Mark] Touhey and [Sam] Dash that grand jury testimony had been fruitful and that I was fully prepared to continue grand jury inquiry into the many remaining questions surrounding Foster's death. Nevertheless, on January 14, 1995, I was informed that all planned grand jury investigation would be cancelled, my conduct was under review and I was to be more closely monitored by Tuohey and an FBI agent. In effect, for raising the above questions, I was forced out of this job.
More about the murder of Vince Foster HERE