The trouble is, we never knew what time the 2 returned from tending the sheep. So anything about that timeline is speculation.
Yea, It would certainly be useful to know what time they returned (I am assuming for this post that part of the timeline is not under question, rationale for this is below). I mean it could be that they returned after being called back by SM at around 5.30ish. And taking SM at her word, it
could be that the three of them then really did search for Gus until approx 8.30 when it appears from reports that the police were called. Speculation, all of it.
Not knowing what inconsistencies were uncovered when police reviewed all family statements taken prior to returning to Oak Park in mid -Jan to explore those with family members, makes it very difficult to privilege one theory over another I think.
Having said that, at this point, because Police emphatically stated neither parent is suspect, I am still personally leaning towards the inconsistency being with SM, though not necessarily in terms of what she told police re 5 pm last sighting. I think she would have been consistent with that statement.
And the other two would have no way to confirm or deny 5pm last sighting, if they weren't present at 5pm. Basically to make that work, I own that I am assuming that JL never lied to police at any time and her and JMs accounts coincide . Jmo
In a scenario where speculation is that SM is suspect in Gus's initial disappearance (leaving aside questions around the disposal of this poor little boy's body), the inconsistencies may be related something else, maybe to do with where SM was during the time that family were searching. Maybe to do with conversations the three had re when to call police. Maybe both.
Another thought that crossed my mind in this scenario; if SM made a call to JM and JL to report she couldn't find Gus, maybe the timing of that (hypothetical) call has been discovered to be 'off' in some inexplicable way and inconsistent with when JM/JL actually received the (hypothetical) call. Maybe the inconsistency lies precisely in that space between when SM reported to others that she couldn't find Gus and when those others say that happened ( so it's possible searching by all three commenced considerably later than c5.30pm?).
Speculation and theorising only, and
just a rambling thought for today.
I have no coherent theory at all.