Facebook has become annoyed by all the people committing suicides or murders on their site. Sooooo, if you want to do it live for a Facebook audience, you will need to get crackin'. It may already be too late to get your show past the thousands of censors they've added to their staff.
There are also serious concerns about privacy on Facebook - http://www.bbc.co.uk/programmes/b08qgbc3 (available only to UK addresses I think, and for a month from 8th May).
But if anyone's got the hanging suicides that have been posted on Facebook ...