At least 17 people were killed in one of the schools in Florida. 17 injured were taken to local hospitals. The incident happened in the town of Parklund. The former pupil, 19-year-old Nicholas Cruz, opened fire from automatic weapon on the street and then broke into the school building and shot his peers. The law enforcers have already arrested him. President Donald Trump commented on the incident in social network. According to him, pupils and teachers feel insecure in schools.