Longtime business teacher Jeffrey Grimm, 45, was found by other staff who called 9-1-1 from the high school.
Grimm, of Union, also served as offensive line football coach for Matawan Regional High School.
A visitation will be held Monday, Dec. 6 from 4 to 7:30 p.m. at McCracken Funeral Home, 1500 Morris Ave in Union. A funeral service will follow from 7:30 to 8 p.m.
Grimm was born on Oct. 22, 1976.
It appears he passed from natural causes, and police have not labeled his death as suspicious.
Click here to follow Daily Voice Egg Harbor Township and receive free news updates.