I remember it well...I was a Senior in HS in PA at the time, taking a few courses part time at a local university. A few years later, I dated a gal whose dad was a speech writer in Harrisburg, and had been in the front row at Dwyer’s presser. My GFs dad had been deeply traumatized by the experience.
I would imagine.
I wonder how many of the people who witnessed it sought out therapy. I know I would have needed to.