A tragic incident occurred at an elementary school in Daejeon where an 8-year-old girl was killed. The perpetrator is a female teacher in her 40s, identified as A, who stated she committed the crime out of frustration over being excluded from teaching. According to her statement, A planned the crime just three days after returning to work, claiming she was excluded from classes by a specific teacher. Thinking any child would suffice, she lured and killed the last child to leave the classroom. A is currently receiving treatment in the hospital's intensive care unit.