All I can do is offer my condolences to the family of the Cadets and Instructors involved.
My most fond memories of the ATC were the Air Experience Flights, I was lucky and managed to get a fair few flights. I wouldn't be into flying today if it weren't for the ATC and the opportunities they provide. I felt genuinely sad when I found out earlier today, never mind my anger at people stating speculation as fact before even the next-of-kin have been informed.
However, not is not the time to pick a fight. All my thoughts go to the families.