For me, this a very strange accident/crash....
- a very light, modern jet didn't come to a halt on a +3 km runway, not snow covered, not icey
- no tech problems, at least not told to ATC
- between TD and impact, the AC lost only 20 kts (if true...)
- it is yet still not known, who was on the controles
- it is yet still not known who was in the cockpit and on which seat...