Investigators are working all out in Germany to try to nail down what on earth was on the mind of co-pilot Andreas Lubitz when he apparently crashed that Germanwings jetliner on purpose. It seems like a difficult task and what has been learned is thin. There is talk that he was subject to depression from time to time but there isn’t a single friend or acquaintance who will say that. Experts seem satisfied with the evidence from the aircraft equipment that Lubitz purposely sent the plane into its fatal descent. Did he know it? They seem to feel he must have. Latest BBC report of today (Friday March 27, 2015).