It is certainly not something that should be taken lightly... However it is also a natural process and a part of life.
Everyone has different degrees of tolerances... And you don't actually know what your tolerance is until you actually see and experience it in person.
Hopefully they provide this individual with all the services and help he needs to deal with what he has witnessed and move past it.
Hopefully they do that, or they've got a lawsuit on their hands.
Some days I just blow up.