and then there were none movie

While viewing this movie I saw two scene that made me think. one where the judge is found to be the culprit. The judge then explains to Vera about the reason he killed everyone in the house ;Viewing it as justice. I see it as anti-hero step or as being a vigilante. In the judge's own mind he thinks what he is doing is right and getting rid of the dangerous element. Second rogers the butler the comic relief I see him a sad figure troubled past and people assuming he's dumb. Rogers reminds me of Charlie Chaplin downtrotten figure with a comedic tone.