"Loek" writes:

Mx, Dallas,

How on earth do you both know all about the cause of this tragic accident??

They were making quite reasonable conjecture. Indeed the tow plane and
glider had the legal right of way. More important as to the cause of the
accident, who was going faster? Almost certainly the Cirrus. It's like
saying the Hudson River plane was hit by birds. Not so, the plane hit
the birds.
--
No one is completely unhappy at the failure of his best friend.
Groucho Marx