Apologies in advance if this turns out all wrong(!) but am going to unload a lot of tentative conjecture here:
1) I visited the actual crime apt. complex today for first time -- partly to answer my prior question: would ex-bf ETJ have been able to observe the comings-and-goings at Faith's apt. from his separate place? -- Answer: No, he would not.
Faith (and KR's) apt is tucked away at far back-end of complex near woods. It is also unlikely any perp would just stumble upon that particular apt. (though still possible someone followed KR/FH home that night, or had been stalking for weeks prior) -- most likely scenario, as already presumed, is that perpetrator(s) already knew FH/KR, knew the location of apt., and had even been inside previously. The police have surmised from the beginning that this was a very "personal" crime, in no way a random event or stranger-rape.
2) ETJ, JB, and even RLJ all have suspicious behaviors pointing in their direction, but I believe have given DNA samples (could be mistaken) that did not match crime scene (there have been no DNA matches). ETJ, and his car, and his apt. were heavily searched early on in investigation (tremendous amount of time expended on him due to so much circumstantial evidence pointing his way), yet no definite connection found (doesn't mean he might not know more than he's told).
3) The FH/KR apt. is tucked away in a manner that might've allowed a major disturbance to go unnoticed by the wider complex, but I still think an immediate neighbor, below or to the side, (IF those apts. were occupied at time) would've heard something disturbing -- only one person so far as I'm aware ever reported any unusual noise. All indications are that the assault on FH was prolonged and she struggled VERY mightilly (and was NOT drunk or drugged) -- leading me to surmise one perpetrator could not have carried it out (and kept the noise-level that muffled), and that 2 or even 3 male perps were involved holding control over FH while she fought.
4) And I have names attached to those 2-3 perps, but it relates to how people were divided up into the cars going to and coming from the Thrill late that night -- I think I have that figured out, but there's room for error (and there's still one individual I'm uncertain of -- "unknown roommate" in the documents). I've said before that I think the timing of the early-morning partying at a nightclub with a group of imbibing males, and subsequent series of phone calls all shortly before the crime, is likely more than coincidence -- I don't believe murder was the criminal plan, but a result of sudden impulse/rage (fairly easy to dream up scenarios). (...Having said all that, the possibility remains, however slim, that NONE of the men highlighted in released documents are the killer.)
Further, in my own mind, I have possible explanations for the several phone calls/messages preceding the crime, and for the cryptic paperbag note, but won't even venture there right now, as I'm already piling conjecture on top of conjecture.
Also, am baffled why there has been no mention of fingerprint matches yet… there must've been fingerprints galore at that crime scene (no, they don't necessarily indicate the killer, but they sure may be circumstantial evidence to point in some possible directions).
And would still like to know the ~time-of-death (perhaps someone has seen it in the autopsy?) -- am guessing it was between 4:45am and 5:30am.
Someone wrote here that there will be more information released ~October 1; I'll wait to see if any of that strengthens or weakens the scenario I now have in mind. This is the sort of tragic case, that once it gets under your skin, is hard to let go of!