Hi Antoinette,
Condolences to all of you.
No one claims to know the reasons for this dreadful crash. This speculation on this forum is something that happens in most incidents.
I am glad to see the original critical and incomplete poster did not come back, possibly banned by the moderators.
If, in due course, the truth about why this happened comes out, it will help the flying community.
I doubt much more will be posted about this accident till more information comes available.
I wish you and the other loved ones much strength in the coming days, weeks and months