> the Governor at the time couldn't take the media pressure after ST resigned, and the Grand Jury was called---

Yep, and the Governor's involvement put real pressure on Hunter. If the Governor would have named a Special Prosecutor, Hunter would have been relegated to the sidelines right in the middle of the biggest case of his career. In order to avoid that, he brought in Kane and a bunch of other prosecutors to show the Governor that no stone would be left unturned in pursuit of "the killers". I hate to say it, but in a way one could say Alex Hunter sold his soul to the Governor - oops, I mean the devil - to avoid public humiliation by having the case taken away from him.