Maybe the investigation is taking so long cause (????):
1) One guy on board wears a US Marshall Ball Cap, if real, maybe he is an oathkeeper
2) Guy records crash with his GoPro
3) Did people leave plane without life vests?
4) Life vest were not sufficent, had to use cushions to stay afloat.
5) I may have seen people in water without a vest, and some gut on the wing distributing vests???
6) Crash readiness 100% FUBAR ?????????
From other reports, everyone had a life vest. They sat on the plane for several minutes getting them on. After the plane began to sink, they got out.