in the premises of a hospital, and we have all been very moved with this event. >> witnesses say the afghan gunman, that police guard, turned the gun on himself, but he did survive. currently he's in surgery. police in afghanistan don't yet have a motive, but they assured me -- the health minister assured me there would be a full investigation. the bluefin 21, 90% done with its underwater search for flight 370, and still after six weeks, no sign of that missing plane. complicating the mission, the sheer amount of garbage floating around in the indian ocean. cnn's randi kaye gives us an inside look at one of the largest floating trash heaps known as the indian gyre. >> the debris that you might see, you know, in our homes, all around our homes. here's a toy grenade. here is a paintbrush handle.