Big sigh....yes.
Many have meticulously chronicled the commentary from the main players, and attempted to create a rational timeline that could surface indicators of what happened to SW.
There are critical missing pieces of info, and material discrepancies. In the frenzy of trying to find a missing child, some of this is to be expected. Maybe some of the fuzziness is a result of one of the main players attempting to reposition events to look less negligent. We just don't know. Many things have been suggested, but without firsthand knowledge.
The only people that have firsthand knowledge of the chain of events that day are CW, her mother (the G'Ma), H, SW's siblings (the boys), and to some extent, DW.
By now, expert authorities have interviewed all of the above, and will clearly know where the gaps/discrepancies are, and who (IF anyone) is being deceptive. I have no doubt that authorities have been carefully monitoring any post-event collusion, which will further support discovery and a resolution to this case.
It is my *amateur opinion and speculation* that an arrest is imminent; as quickly as the DA has the digital forensics sorted out.