Given I was about 7 when it happened one of the few things I remember was my school principal informing us about it over the intercom back at my elementary school and we all had a moment of silence. The vibe of what was going on that day was not good and I probably wasn't aware of how it was affecting my mood until reflecting on it years later.
When my mother picked me and my sister up and showed us what was going on, I couldn't comprehend what was going on and seeing it on TV was well... surreal. I even asked if it was a movie and my sister at the time was the one to point out that it was real.
Although when I rewatch these events on a yearly basis around this time I imagine what it must have been like to see or hear about it when it did happen from the perspective of someone who was an adult then. The event is too well documented that countless accounts have been posted online.