Can confirm, that kind of thing (murder that the jury decide was OK because they had it coming, or a town collectively deciding and sticking to “we didn’t see nothin’” so a prosecution can’t proceed) happens, but it’s so rare most rural-dwellers never see it anywhere near them in a lifetime. Unless it’s cops covering up for other cops or their pals, but I mean, even that’s not exactly an everyday occurrence (at least at the level of things like murder). Approximately nowhere in the US is this normal among ordinary folks.