Perhaps he was just a witness testifying to police procedure and not actually involved int he case but it could be fun to look up those court records and see what might be there.
I asked my Mother if she knew about this and she replied that no, she didn't, "But he didn't talk about those things at home."
My grandmother passed away before I was born so I have no idea what her thoughts might have been but I am grateful that she (and my great aunt) saved a whole lot of this stuff in locations that were all over, pretty much ensuring that if someone, someday were to be interested, it would be found.