 A homeless man in San Francisco is now accused of killing a woman by shoving her into the path of an oncoming train. 49-year-old Trevor Belmont, who goes by the name Hoke Tang, is now charged with murder. Prosecutors say at 11 Monday night, he pushed 74-year-old Corazon Danden in front of an oncoming BART train. Her family says she was a telephone operator at a Marriott hotel and has commuted home that way for 40 years. At CBC's Alex Stone on the West Coast, there is not yet word on any potential motive.