As already stated you have absolutely no,idea when they saw the footage and what has happened behind the scenes.
Just because they were only released to the news later on Friday doesn't mean that was when they were actually handed in, verified and followed up.
You seem to think that everything is realised to the media at the exact time it's seen by the police and rescue teams. There could be several hours between those events,
Likewise, there will also be lots going in that you have no,idea about, right now, and which may never be released to the media for you to see, or which may only be released much later on.
It's really important that people realise that they only actually know what the police and rescue, and then the media after that, have chosen to let you see and at what time. You don't have the full picture at all!
As I mentioned before about a local,search - due to being on the exact location it happened at the time I know for certain that a lot of things were said and done that were never released to the media, so from the average news reading public's pov it looked like there were gaps and missed information but in reality there wasn't.