Rest in peace, Ms. Schmitt
I found out from the March 2011 Stuy alumni magazine that "Debra Schmitt, who taught English at Stuyvesant in the 1990s, died in January in California. She is survived by a former husband and a child." Here is an obituary.
I was in Ms. Schmitt's class during freshman year at Stuy. The sight of a slinky attractive teacher stretching herself out on her desk during her lesson was fairly exciting for a teenage boy.
The official determination is that Ms. Schmitt committed suicide. R.I.P..