I attended high school in the latter part of the 1970s. While there, the most beautiful girl in my grade 9 class and the most popular girl in school, which had about 1500 students, was murdered by her jealous boyfriend, who then committed suicide.
I remember my Mom telling me when I woke to go to school what had happened, as it was all over the news. By the way, there was no social media or computers at the time. You got your news from the morning newspapers, radio or TV. I recall the constant chatter and gossip when I arrived at class.
It was a sad day and a devastating moment in my life when I realized how precious life is and how evil and tormented some people are. I never forgot the event.