"Suicide is just cry for help", I agree with the sentence completely! Many people find themselves in front of the "wall" emotionally and they think the end of existence will solve the problem. Life is too precious, people are too precious to let them end up this way. So I think that solution of the problem is to talk to person which have suicidal tendencies, you can always tell if someone have them or not. Show them the way out of emotional blindness.