>The next morning, Poirot discovers Ratchett was murdered during the night, having been stabbed a dozen times. [...]
>With the train back on track, Poirot concludes that justice is impossible in this case, as Cassetti deserved death; for the first time, Poirot will have to live with a lie and imbalance.
https://en.wikipedia.org/wiki/Murder_on_the_Orient_Express_(...
>The next morning, Poirot discovers Ratchett was murdered during the night, having been stabbed a dozen times. [...]
>With the train back on track, Poirot concludes that justice is impossible in this case, as Cassetti deserved death; for the first time, Poirot will have to live with a lie and imbalance.