Nobody can yet know the story here. Fair to early for anything other than wild speculation. A prediction of what will happen though.
1) US Government Agencies will quickly realise that popular belief that this was a terrorist incident will have very serious implications for US econony generally and possibly catastrophic implications for the US and to a lesser extent worldwide aviation industry. They will publically at least be pushing the accident theory to death regardless of the facts
2) Meanwhile the conspiracy theorists will have a field day over the next days and weeks with ever more outlandish theories of how this was a terrorist incident.
3) Unlike most aviation accidents there is not an overwhelming public interest in knowing what happened here unless it was in fact an accident. As such I fear we will never be definitively and reliably told what happened here.
4) We have a choice. We can either get involved in endless illinformed speculation or we can mourn for the victims but otherwise let this one lie. I will be following the latter option