Sorry for the overused quote, but it just had to be here.
...a lot of people are like you and seem to romanticize the suicidal while aiming to punish perfectly normal adolescent behaviour.
Oh, man, I'd hate to live in the world you consider normal. Luckily it exists only in your imagination.
People who are prone to the real suicide are much more quiet about it than some drama queens who are shouting "I'm going to kill myself!" several times a day. Well, the same thing with the real homicide, too - even as adults we are prone to exclamations like "I swear, I'm going to kill that guy!", but these exclamations do not correlate with the real murders so often, right?
It is truly a challenge for any parent to admit that there is something wrong with their kid (not mentioning some crazy hypochondriacs and the like), be it a suicidal or sociopathical motives. In this particular case I personally would put more blame on the parents of the bullies, than on the parents of the victim. At least with sociopathy there are often other signs that are hard to miss, and often there is something wrong with the whole family - abusive or neglectful parents, for example, or some other emotional disfunction.