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 A 31-year-old female teacher was declared dead after students found her hanging inside a high school classroom in Placentia, authorities said Monday. Jillian Jacobson, a photography teacher from Anaheim, was found by several students after another teacher opened her locked classroom around 8:40 a.m., police said. Authorities said the students went to an adjacent classroom and found another teacher, who unlocked the door, and then found Jacobson hanging from the ceiling inside. Police and firefighters were called the campus at 8:40 a.m., and when they arrived, the female adult teacher was found in full cardiac arrest, Placentia Police Department Lt. Eric Point said. “After several minutes, she was declared deceased at the scene.” 
 
 
 
 Jacobson possibly died before paramedics arrived, but every effort was made to try to revive her, Point said. Investigators estimate that Jacobson died about 7 a.m. based on an initial investigation, O'Neal said Monday afternoon. It was a terrible thing that happened today.” 
 
 The student said Jacobson had always said suicide was not an answer. Students and teachers in tears 
 
 
 
 
 
 Some students left the campus starting around 10 a.m., and the entire student body – about 1,900 students – was released an hour later. Her husband had been notified of her death, he said. The door was locked when students arrived for their first-period class, and after another teacher came to let them in, the teens discovered their teacher, the lieutenant said. Grief counselors were made available for students and teachers, and school was expected to resume with a normal schedule Tuesday, according to Candy Plahy, the assistant superintendent of educational services at Placentia-Yorba Linda Unified School District. “Going back to school will help restore normalcy.” 
 
 
 
 Plahy said the “handful” of students who found Jacobson were immediately taken to crisis counselors. It’s unclear whether any of those students will return to classes Tuesday. History of death at El Dorado High 
 
 
 
 
 
 This is not the first time death has plagued the El Dorado High School campus. Logan Wells was 16 years old when he was struck and killed by an SUV while riding his skateboard just before 5 a.m. March 23, 2014, near Bastanchury Road and Secretariat Way. The post originally stated she died at 12:45 a.m., but it was later changed to 7 a.m. Mrs. J was amazing to our family after Logan passed and one of his fav teachers RIP.” 
 
 
 
 Coach Terry Conley died Nov. 29, 2009, of a heart attack at age 60 while exercising in the El Dorado High School weight room. "She was also happy and full of life during class," said student Maya Shepherd. “She was the greatest teacher that was here.
– The door was locked around 8:40am yesterday when a few students arrived at Jillian Jacobson's photography classroom at El Dorado High School in Placentia, Calif. "That's not normal for that hour of the day," a police lieutenant explains to the Orange County Register. The students found another teacher to open the door and were met with a horrific scene: Jacobson, 31, hanged from the ceiling. A student in the other teacher's class says they could hear "screaming, crying," and their teacher yelling, "Oh my God, oh my God!" after the door was opened. That teacher and Jacobson's students lowered Jacobson to the floor, and paramedics tried to revive her, but she was pronounced dead at the scene, the Los Angeles Times reports. Jacobson was a popular teacher—and her own father had committed suicide, according to several students who say it was not uncommon for Jacobson to speak out against such an action, advising students that "suicide was not the answer," as KTLA puts it. No suicide note was found, but the preliminary investigation indicates she did take her own life, the lieutenant says. "She gave no signs of being depressed or sad," says one of her former students. Another student at the school, one of many who mourned Jacobson on Twitter, said she remembered the teacher often "really brightened up everyone's day." But others say she was struggling with "personal issues." The students who found Jacobson were taken to crisis counselors immediately, and grief counselors were made available at the school.