them. The caller then tried to inform the operator that there was someone with a gun, but he was in a state of panic at the time and the operator could not understand the situation. At 11:46:38, it was finally determined a shooter was involved, and the incident was reclassified as a shooting. Police patrols were alerted, and the first officers arrived at the scene at 11:55 to begin evacuating students and staff from the building. Ambulances also arrived at the same time. In addition to officers from the local police department, officers from the Central Uusimaa, Hyvinkää, and Vantaa police departments, along with officers from a special readiness unit, were involved in the police response. The medical response consisted of a total of twelve ambulance units, along with two rescue units and a medical helicopter. Despite reports of only one gunman, the police realised the information was not definite and considered the possibility of multiple assailants. They converged on the inner court, where they believed three or four victims were located according to information given by students, but found no bodies there. Meanwhile, between 12:05 and 12:15, a patrol blockading the pool beside the school building found Kalmi, alive but badly wounded. Basic life support was initiated on her, but despite these efforts she died of her injuries at the scene. Between 12:35 and 12:37, an estimated 200 students and staff were evacuated from the school and relocated to a nearby centre. Readiness unit officers entered the school, and by 13:38, they found six of the victims, four in the hallway and the other two on a corridor stairway. At 13:54, they found Auvinen's body next to a men's lavatory near the canteen. Signs of life were detected on his person and he was moved out of the building to receive first-aid. At 13:58, the officers found the last victim on the school's second floor. They believed he was still alive and moved him out of the school to receive first-aid, but a doctor determined that the victim had already died by the time he was found. By 14:29, the school was cleared, and no additional gunmen were found. A second inspection of the building was initiated for final confirmation, and the last students were evacuated by 15:17. The second inspection was completed at 15:40. Victims All of the following were killed in the shooting (minus the perpetrator): Sameli