Well, the primary witness was murdered, so getting that side of it is pretty important. The cops, who are still alive, have every opportunity to tell the other side... and yet continue to stonewall, deflect, avoid, and hide. That's a pretty big hint as to the truth of the matter.
The police are being sued, and they are choosing to try the case in court rather than the media. They have an obligation to follow the judge’s orders, not to jump through hoops for their adversary. Their adversary is choosing to try the case in the media. That could be a sign that his case is weak.