Towson Preschool Teacher Hurt In Boston Marathon Explosions Has Leg Amputated Below The Knee

A Baltimore County preschool teacher seriously injured during the blasts at the Boston Marathon has had her leg amputated.  Doctors say she and her sister, who was also seriously injured, have a long recovery ahead.<strong> Rochelle Ritchie</strong> spoke with parents trying to explain to their children what happened to their favorite teacher.