In 1930s mysteries, all sorts of motives were credible which aren't credible today, especially motives of preventing guilty sexual secrets from coming out. Nowadays, people sell their guilty sexual secrets.
“If the Police could do a reunion... One of the biggest jerks I ever met was Sting. If he can do it, then anyone can do it. It's not that big a deal. And the Eagles! They did it! They severely hated each other. It's just rock and roll.”
“One thing you learned as a Cubs fan: when you bought you ticket, you could bank on seeing the bottom of the ninth.”