15-year - old Abigail Smith was last seen walking home from school on October 9 . Police fear she may be held against her will . Young said on Friday . Police say Friday a letter to her father purportedly from the school appears genuine . ` ` We believe in fact that it was written by Abby , '' says a New York official .
15-year - old Abigail Smith was last seen walking home from school on October 9 . Police fear she may be held against her will . Police say Friday a letter to her father purportedly from the school appears genuine . ` ` We believe in fact that it was written by Abby , '' says a New York official .