Re: the Wallace guy
If he is the executive producer, he is the money behind the film. They most likely dubbed him a “media liaison” to give him access to the trial, as he probably wanted to be peripherally involved. You can’t tell the guy paying for your venture that he can’t be involved if he wants to be. IMO, he is loosely connected to the defense in that he is paying for the documentary, or whatever is being filmed. He’s not really a part of the defense team, per se, but he is affiliated with them.