I'm newly registered and posting for the first time just now, hoping that I don't flub too terribly.
I listen to my local police scanner online (mostly because I'm nosy and want to know what's going on). Feed archives are available, for a fee, right down to a certain date and time. I haven't bothered to pay to access the archives, but, if I remember correctly, three-months' access costs only $15.
The feed just provides communication between dispatchers and first responders, but it generally includes info on who (male, female, coworker, passerby, participant) called 911, what appears to be wrong (unresponsive, head injury, other wounds), and where the injured person is located ("Caller indicates the patient is in the kitchen," for example. "Access through the side door.")
This could help clear up some lingering questions about the timeline and who found Missy. The feed would also indicate how and when first-responders realized they needed PD on the scene.
I listen through Broadcastify.com. Archives are provided by RadioReference.com.
I can pay to access the archives later this evening, once my daughter is no longer using my laptop.
Hopefully I haven't violated any TOS right out of the shoot.