Normal Day on School

On my book there are normal kids, normal teachers, etc. But something is going to change now. By morning everyone were learning and studding. But, by afternoon  3 people were already dead. This book starts on a hospital. He starts talking about that day. How everything started as a normal day. but then everything was different.

"the image of the first graders blinking in shock  at the gun pointed at her teacher´s head". This shows just how terrifying the situation was. " Death finding us on an ordinary day". this book is now just talking on death and strangers. I don't imagine something like this on my school .

Death can come at any moment. We just never know when. I really want to die because of time and not an accident or a person. I cant see how people are so dumb to kill someone. I dont think this man is being fair...