It’s good - there is a broken window. When it was broken and by whom is what we don’t yet know.
The actual time of that 0:50 Scanner pickup on that tape will be a clue. It sounds like a first responder.
And if that window was blown out by gunfire, the shell casings should have been right there.
And if it was blown out by gunfire, then it was the intruder who did it, since the chief said that no shots were fired by the police that morning.