Maybe someone knows more details…
https://aviation-safety.net/wikibase/283702
https://aviation-safety.net/wikibase/283703
Video clip shows what happened but it’s unclear who made a mistake and why they didn’t try to jump out of the aircrafts.
Terrible. Seems to me it’s “just” a freak accident. Hard to say what they were trying to do when the accident happened though.
I don’t speak German so I wasn’t able to understand explanation that follows the video clip.