My mom saw it

I was in a university in a city not Beijing then. My parents experienced the whole event. They saw a nine year old boy been shot dead. Our home is far away from TianAn Square, It is in XueYuan Lu. So it must be a stray bullet. My mom is 69 years old now. She cannot forgive. She told me that it was good luck that I was not in Beijing then. She told me "if you see the boy with your own eyes, you will never forget, and never forgive."