Raw Video: Dr. Jill Biden at the Marathon Memorial in Copley Square, Boston

April 24, 2013 | :59

After attending the memorial for slain MIT Police Officer Sean Collier, Dr. Jill Biden made the short trip across the Charles River to the Marathon Memorial Site in Copley Square. Here, she left flowers and a pair of running shoes in honor of the victims of last week's bombings at the Boston Marathon.