After the 1993 WTC bombing (see February 26, 1993), New York District Attorney Robert Morgenthau’s investigators search El Sayyid Nosair’s belongings (see November 5, 1990 and After) and find a bomb formula which was quite similar to the bomb used to attack the WTC. This discovery would link Sheikh Omar Abdul-Rahman’s group to the bombing. The belongings also include a taped plea from Abdul-Rahman to destroy “the towers that constitute the pillars” of the civilization of “enemies of God.” Some suspect this is a reference to the WTC. But the FBI refuses to acknowledge and follow up on the bomb formula or other leads from Nosair. Morgenthau later concludes that the CIA may have pressured the FBI to back off from evidence which led to Abdul-Rahman, as well as blocking other investigative leads (see Late 1980s and After). [New York Times, 11/21/1994; New York Magazine, 3/17/1995]