Suicide doesn't cause pain, so in my opinion it isn't a wrong thing. If there are people around who would love the missing person, and who would grieve at his/her absense, this is painful and thus immoral. Some people commit suicide just for that reason, to make others see that they never showed their love. However, once you're dead, you can't be there to appreciate the aftermath of your work, so its a contradictory pursuit. If no one loves you, you haven't got anything to live for, and want to kill yourself, there's nothing to stop you and rightly so. Chances are however, that someone will miss you. It is a far more worthwhile, entertaining, and lively experience to search out these people then to just kill yourself. Suicide is an option, and as with all, it must be carefully considered. Freedom and liberty have nothing to do with it. You cannot put laws on such things as this with any level of effectiveness.
Kevorkian, since the topic is at bay, was a hero. He helped those who did not have the courage to do it to themselves. Many of us don't have the courage to go up on stage, many don't have the courage to ask a girl out... suicide is just the same. Kevorkian helped those who wanted to get out of their lives. Granted, they weren't getting into anything, but they were putting an end to it. Unless what he did harmed others, it wasn't wrong. He, however, had no way of knowing if it would hurt others. If I go to McDonalds and order a Big Mac, it is not the duty of the McDonald's to ask if it will cause problems. They are there to do what they need to do, they have a job. Kevorkian was the same. The responsibility of making a moral decision is in the hands of his consumers, not him.