There was a statment today in the media of the owner of a mountain lodge of the Segnespass, which said that it was everything normal as the airplane always did, but after a left turn (completed) the plane just fall off the skies like a stone. He also said that there were people at about 150 . 200 meters of the crash that were in his lodge. He did went there to assit but everyone was dead.
You can check the Mountain Lodge here:
Segnespass
and the news here:
https://www.tio.ch/svizzera/cronaca/...come-un-sasso-