Very fast. Quite sad to see it happen. Also quite puzzling is how the Air India disaster still does not have a root cause analysis done (though supposedly it will be released end of this year)
Nothing puzzling. Straight-up cover-up.
Now, the interesting part would be to know what is being covered-up. Pilot error? Pilot suicide? Or a critical system malfunction Boeing cannot afford?
Not that puzzling: the most likely explanation is pilot suicide and the Indian government does not want to acknowledge that.