Still trying to spin lint into gold. What part of no charges do you people not understand? Get over it and move.
Let's say a VP of operations at a public Fortune 500 company is found to have maintained close friendships with sales executives of several vendors. On business trips they went to concerts, high-profile sporting events, cruises, and so forth. He then signed lucrative, no-bid contracts with his friends' firms. Some shareholders raised a stink and called the FBI in to investigate. While the FBI said there was excessive impropriety, there was no evidence of criminal bribery, and no reasonable prosecutor would bring charges. Is this someone you would want to nominate as your CEO?
Your novel is pretty crappy. No charges equals end of story. You might consider yourself a prosecutor on the internet, but you have no authority in real life.