I'm not posting these to be a sensationalist. I'm posting for the sake of transparency.
There is going to a Federal lawsuit filed against the city of Brownsville, TX very soon. This lawsuit will open it all up. Contact the attorney who files the lawsuit. It will be massive. You will have a direct line to all kinds of witnesses, & evidence.
You may want to establish an attorney or nonprofit that takes whistleblowers before they are fired. The attorney who is filing this lawsuit will be the ideal attorney for his area. The amount of evidence he has is astonishing.