I agree but I do take issue with people who act like the initial prank was no big deal, for the reasons i4u detailed.
I've never understood why so many people love pranking. I just can't see what's funny about making someone look and feel as stupid as possible, and sometimes scared. I just don't see what everyone else sees when it comes to any kind of fun or entertainment values in pranking, no matter how ultimately harmless a prank can be.
I wasn't saying that the pranks itself was excusable, just that they were probably being honest when they said they didn't expect to be put through. The initial prank and the way it was handled was mean, and they might have been the straw that broke the camel's back, but I don't think we can hold them heavily responsible for the suicide...