"'It's too late for that now, Inspector. We can't put back the clock and live yesterday again. But we can find out who killed her. We can find him and feel his throat in our hands' - the thick fingers had begun to work - 'and hear him try to squeal for mercy and see his obscene murderer's eyes blaze with terror and come bulging out of their sockets as he knows the life is being choked out of him!'"
Murder Has A Motive, by Francis Duncan (copyright 1947; quote is from page 37 of the Vintage/Penguin Random House trade paperback edition, 2016).