A 74-year-old San Francisco woman has died after she was pushed in front of a BART train by a homeless man at a subway station. Corazon Dandan, a San Mateo County resident, was shoved in front of a moving Millbrae-bound train at Powell Street station at around 11.06pm yesterday. BART police officers have identified and taken Trevor Belmont, 49, a homeless man also known as Hoak Taing into custody for the incident.