The hope is always there, just change the purpose.
Instead of a life without suffering one expects to end the pain.
That is the final hope that the suicidal people embrace.
Sometimes people find themselves in situations where the unimaginable is a better option than whatever it is they're facing. The act is equally horrific, but preferable to the alternative.
> At least 200 people are believed to have fallen or jumped to their deaths [from the World Trade Centre on 9/11] while other estimates say the number is half of that or fewer.
[...]
> The New York City medical examiner's office said it does not classify the people who fell to their deaths on September 11 as "jumpers": "A 'jumper' is somebody who goes to the office in the morning knowing that they will commit suicide. These people were forced out by the smoke and flames or blown out."
Many people opt-out of aggressive cancer treatments that may add months on to their lives, and increasingly euthanasia is a (legal) alternative to letting medical conditions run their course.
There are situations where ending things early can be one of the valid choices made available to you.
http://www.goodreads.com/quotes/200381-the-so-called-psychot...
I'm not sure how it's possible to come to that conclusion.
(And to be clear: I wasn't originally trying to suggest that everyone that fell from the WTC made a decision to jump. I think it's probably fair to say almost everyone that fell was simply trying to get away from the smoke by leaning out of windows, etc. )