Christopher Ryan, 54, an English and social science teacher at James Logan High School, was found dead late Thursday afternoon at the bottom of a ravine off of Interstate Highway 280 and state Highway 92 along the Crystal Springs Reservoir, school district officials said.
Ryan, a Redwood City resident, had been reported missing by his family on Tuesday and his car was found abandoned at a parking area off of the highway on Wednesday night, according to the San Mateo County Sheriff's Office.
The cause of Ryan's death is unknown, pending an autopsy.
Grief counselors are being made available today for students at Logan High School, where Ryan had worked since 1994, including a period as a part-time administrator who was responsible for the school's master schedule, according to the school district.
School principal Amy McNamara met with teachers and staff Friday morning to inform them of Ryan's death and discuss the appropriate ways to tell students, district officials said.