Late Monday, CWBChicago received confirmation that the letter case has been before a federal grand jury and multiple subpoenas have been generated over the course of the investigation. In a conversation on Feb. 8th, before police met with brothers Ola and Abel Osundairo, a leading source within the Smollett attack investigation called the hate crime a "false flag" and said “There is a direct line between (the letter) and (the purported attack)." In the same conversation, the source hinted at what was to come: "This is not a whodunit. It's a how-many-people-dunit." Whoever mailed the letter "made an enormous mistake,"...