> all the bluetooth MAC addresses that was seen by the Echo device in the home around the time of the murders

which is just not how this stuff works. I'd believe it if, say, debug-level logs were being recorded locally. But that would be an incredibly stupid way to burn through your flash storage.

But that's besides the point. A record of the last date of connectivity for trusted devices is an entirely different thing.

I'm interested in evidence that this type of data extraction took place. I'm not interested in speculation.