Five days after a woman believed to be homeless was burned to death by a passenger inside a New York City subway car, city officials have still not been able to confirm her identity. Investigators may have to rely on dental records or DNA analysis to make an identification of the victim. “It just adds another level to a tragedy,” David Giffen, director of the Coalition for the Homeless, told the New York Times. “At this point, we still don’t even know who she was and she can’t be mourned.” Giffen said the incident underscored a broader lack of interaction