Still seems like a bizarre way to commit suicide. Basically, one pilot would first have to kill the other or lock him out of the cockpit (is that possible?). Next you reroute the plane through a couple of different waypoints while also climbing to 45k to asphyxiate everyone else. Then you drop back down and point the autopilot to the Indian Ocean and just cruise for 7 hours? What do you do during that time? Chase a few sleeping pills with vodka, go to sleep, and let the plane do the rest? And why kill yourself that way? Do you figure if you plan it just right, nobody will ever find you or prove it was suicide?
