News Sandy Hook school psychologist died confronting gunman. 10 years later, her husband still fights for change. December 14, 2022Grace Hauck, USA TODAYComments Off on Sandy Hook school psychologist died confronting gunman. 10 years later, her husband still fights for change. Sandy Hook Elementary School psychologist Mary Sherlach died confronting a gunman 10 years ago. This is how her family is keeping her legacy alive.