VANCOUVER -- The Chinese mother of a 13-year-old girl found dead in a Burnaby, B.C., park six years ago has taken the witness stand at the murder trial of her accused killer.\n\nThe mother, who cannot be named under the terms of a https://yamcode.com/raw/china-president-says-wants-update-2007 https://yamcode.com/china-president-says-wants-update-2007