I don’t think the problem is the officer having no rights. I think the problem is that the deceased has friends who were eyewitnesses who are talking. The police are saying virtually nothing.
If it were a political campaign, we’d say one candidate is letting the other candidate define him very early in the race.
The police need to speak up and get their fellow officer’s story out there, and especially about what took place at the door/window of the police car and at the time when the deceased is said to fled, the officer pursued, and there were a number of shots.
As it stands, the lack of info being put out by the police is making them look in the wrong.