They’ve established the location - but not the cause, of course.
95.1113 east 42.5453 south
Gay muzzie pilot must have been on his way to the South Pole.
Must have had another satellite identify and was able was to triangulate with the first one.
It seems that finding the FDR (black box), will be imperative for any hope at discovering why the plane went down.
While there are a lot of unexplained answers, one of the simplest scenarios made the most sense to me. More sense than the conspiratists that suggested the plane was hi-jacked, landed in some mid-eastern country, and would be made into a suicide bomb.