May you inform us as to the make and model? Lots of .45 handguns out there. Not many have a reputation of going off when dropped, anymore.
Or, perhaps it was a really freakish accident, which happen from time to time...
In whatever case, it would be nice to know a bit more.
Was a Springfield Armory…. Model P9 chambered in 45 acp. Only made a couple of years…. Like in 1992. I have owned gun since back then.
I have a little YouTube channel and did a video about it. Video got 118k views. Not trying to promote my channel, but if you are interested the link to vid is here. I show the gun etc…. It was a very bad accident.
https://youtu.be/BqA-K70BOc4?si=ZcDUtUO9lq70uBZ0