Police in the US state of Georgia have shot and killed an LGBT student activist, leading to an independent investigation. Police encountered Scout Schultz at a campus in Atlanta after a call about "a person with a knife and a gun" late on Saturday, officials say. Footage has emerged apparently showing Schultz, 21, refusing to obey multiple police commands to drop a knife. Schultz's mother said police should not have used lethal force. In a video filmed by fellow students at the Georgia Institute of Technology, Schultz is heard saying "Shoot me!" while continuing to advance on the officers. One...