Great father and son story, Doug, thank you!
The .38 Special is just as effective as it always was, which is considerable. There's just a lot of hype today in order to sell new guns and ammunition. Reliability and Shot Placement matter most, the rest is extraneous.
Many shooters today think that they can use "spray-and-pray" in place of careful shot placement. They frequently use the "I'm being attacked by multiple assailants" argument. This has elevated high-cap semi-automatic pistols to fashion statements.
Others would say that "honor" would go to the 9mm.
The .38 Special would probably be in the running for the most for a revolver cartridge but the lowly .22 would probably be the winner.
I have them. A 2" J-frame for EDC and a fixed-sight 4" K for home defense. Both .38 Special, both stoked with the old FBI load. Everything I need and nothing I don't, to quote a phrase I read here fairly often.
I read some where, several years ago that more homicides have been committed with the .22RF than any other round. However, cannot provide the source of that info.