The Dalton School is a private school in Manhattan. The school was founded in 1919 and was originally called the Children's University School. The school's founder, Helen Parkhurs, developed the educational philosophy known as the "Dalton Plan," which is the basis for 200 other Dalton schools worldwide. The Dalton School: About

On February 18, 2009, 17-year-old student Theodore Graubard jumped to his death from the 11th floor of the Dalton School on East 89th St. The Graubard's body narrowly missed a group of fourth grade children who were playing on the sidewalk.New York Daily News: 17-year-old student plunges to death at Dalton School (February 19, 2009)

On February 18, 2009, Theodore Graubard jumped from the 11th floor of the Dalton School. Detectives believe the 17-year-old jumped out of a window located in an empty room used as a dance studio. The incident occurred at approximately 11:15 a.m. according to witnesses. The teen's body landed near children that were playing on the sidewalk.NY Daily News: 17-year-old student plunges to death at Manhattan's elite Dalto... (February 18, 2009)New York Daily News: 17-year-old student plunges to death at Dalton School (February 19, 2009)