24.04.2026 18:16
Teacher Fatma Nur Çelik, who was stabbed to death by a student in Istanbul's Çekmeköy district, was brought before the judge. The perpetrator, high school student F.S.B., was not taken into the courtroom as the victims did not want to see the defendant.
The trial has begun for high school student F.S.B., who stabbed and killed teacher Fatma Nur Çelik in Çekmeköy and injured two others, facing up to 126 years in prison on three charges.
The first hearing at the Anatolian 2nd Heavy Juvenile Criminal Court was attended by teacher Çelik's family, the injured parties, the minor victims, and the attorneys of the parties. A lawyer from the Ministry of Family and Social Services was also present.
MINOR VICTIMS DID NOT WANT TO FACE THE MURDER SUSPECT
At the hearing, which began with the reading of the indictment, the minor victims who did not want to face the defendant F.S.B. were heard first. While the victims gave their statements, the door of the corridor where F.S.B. was located was left ajar, and the defendant listened to the hearing in this manner. After the minor victims left the courtroom, the defendant F.S.B. was brought into the courtroom.
HEARING ADJOURNED
When asked for his opinion, the public prosecutor requested the continuation of F.S.B.'s detention. The court panel, which decided to extend the defendant's detention, adjourned the hearing to Monday, April 27, to hear witnesses.
FROM THE INDICTMENT
In the indictment prepared by the Istanbul Anatolian Chief Public Prosecutor's Office, it is stated that on March 2, the defendant F.S.B. entered the school garden gate and examined the class schedule files showing which teacher was in which class on which day and time, and his actions were aimed at target selection.
The indictment describes how F.S.B. entered classroom 206, where teacher Fatma Nur Çelik was teaching, and without any warning or argument, directly approached Çelik, who was sitting at her desk, attacked her with 4-5 knife blows to the back area, and then quickly left the classroom.
Referring to the images after the incident, the indictment recounts that after leaving the classroom, teacher Çelik tried to remain standing in the corridor for a while, moving by holding onto the wall, had heavy bleeding especially around her back and left shoulder blade area, and died the same day at the hospital where she was taken.
In the indictment, considering that F.S.B. examined the class schedule on the day of the incident to determine the teachers' locations, then directly headed to classroom 206, and after entering the classroom, directly targeted Çelik without any argument, warning, or sudden development, it is assessed that the attack was not a sudden reflex but an execution action showing intensity and continuity.
The indictment emphasizes that F.S.B.'s action was not the product of a "sudden and temporary outburst of rage" at the moment of the incident, but rather occurred at the end of a process that had spread over months, gradually deepened, been mentally nourished, and finally transformed into a concrete execution action.
GUIDANCE AND PSYCHIATRY REPORTS
The indictment states that in interview and referral forms prepared by the school guidance unit from early 2025, F.S.B. was under monitoring due to introversion, self-harm, intense anger, behavioral deterioration, difficulty adapting to the environment, and need for psychiatric support. It notes that in these interviews, F.S.B. said he heard voices that gave him harmful suggestions, and at another stage, he told the guidance teacher, "I want to kill someone." Following this statement, the family was called again, and the psychiatric referral process was initiated.
The indictment also includes the health board report from Istanbul Prof. Dr. Mazhar Osman Mental Health and Neurological Diseases Training and Research Hospital, where F.S.B. expressed feeling rejected and hurt at times, seeing his inability to attend school as one of the reasons for his depressive feelings. It is assessed that due to his absence from school, he magnified in his mind the perception of hostility, resentment, and exclusion toward the teachers.
The indictment notes that shortly before the incident, F.S.B.'s treatment ended, and around the same time he returned to a free social environment, it was determined that he watched videos containing the mass killing-themed game content "Hatred Mass Murderer Mode" and the school and violence-centered film content "Once Upon a Time in High School." It emphasizes that these points are parallel to criteria important for evaluating premeditation: within the time after the decision to commit the crime, F.S.B. mentally staged the scene of the act, engaged with tools and images that nourished the killing thought, and did not turn back from his decision but rather deepened it.
The indictment states that F.S.B.'s action was of a nature to shake society's common conscience, instrumentalized human life, and turned killing into an end in itself.
Additionally, the indictment reports that F.S.B. lightly injured teachers Z.A. and B.A. with a knife and attempted to attack students S.K, K.A, B.R.A, M.A, A.D, M.B., and teacher Ş.G., also chasing some of them with a knife.
F.S.B. is being charged with "premeditated murder with monstrous intent against a woman due to her public duty," "attempted premeditated murder with monstrous intent against a child," and "attempted premeditated murder with monstrous intent against a person due to their public duty," with a request for a prison sentence of up to 126 years.