You know how on September 11th, over 200 people "jumped" to their deaths? Was what they did sinful?
It's said that these people didn't choose to die, but rather chose how to die; it was either going to happen being suffocated in there or by impact. It could be argued that they were forced out, but would it have been a sinful act to jump rather than just wait for the inevitable, even though the latter may be even worse than the former?
Of course, some adjustment should be made because in a panic situation, you might not be in your right mind.
But, theologically, was it a sinful thing? And I'm guessing most of you will say no. I don't have any opinion either way because I wasn't in the tower and I don't really know how bad it was. This could have implications on end-of-life treatment and euthanasia, so it's not just a hypothetical discussion.