I think you should be allowed to do that.. to an extent. As some people have said before, jumping off of a bridge or jump in front of a train is selfish and shouldn't be done. The people that see you do it will be traumatized for a long time. Drink alcohol and take a few dozen pills? Sure, Your loved ones will be heart broken, but still. Less damage dealt than when jumping in front of a train or off of a building.
As for honor.. The Japanese soldiers (used to) commit suicide when they ran from war or they were captured as POW's. I'm okay with this too.
But killing yourself and a crowd of people because your God told you to do so? No.