I don't see the point of your rant. It's not like the police can do everything instantly. And we're simply learning from the SLCPD that getting good information from a kid takes time and multiple interviews.
Aside from that, you're quit simply ignoring the fact that the SLCPD says they're not telling us everything they know, and that they have a careful review process for deciding what information to release.
I believe in a case such as this, you do not give out information such as they did, without something relatively on target..and then let it ride for two solid weeks !! Now they have completely changed the entire thing.
There is something wrong here.