Serim Han, center, holds a picture of her husband Ki-Suck Han, as she is flanked by New York City Comptroller John Liu, left, and Rev. Won Tae Cho, Han's pastor, during a news conference on Wednesday, Dec. 5, 2012 in New York. A homeless man was arrested Wednesday in the death of Ki-Suck Han, who was pushed onto the tracks and photographed just before a train struck him. (AP Photo/Bebeto Matthews)