Originally Posted by Farranor
Mundo's lore has a plot hole so big that it ruins the story.
"By his teenage years, his parents were nowhere to be found. By the time he had legally acquired his license to practice medicine, he had been acquitted of thirty-eight separate charges of murder by the Zaun authorities; the lack of evidence made prosecution impossible."
Not having enough evidence for a conviction is one thing - that happens all the time, even outside of Runeterra. But the idea that people would do nothing is simply preposterous. Being acquitted means that, although they may not have had concrete proof to tie Mundo to the crimes, he was under frequent, heavy suspicion. What was his attitude to the repeated attention from the authorities, I wonder? Did he display shock at their accusations and disappointment in their lack of faith in his innocence? Or did he rub it in their faces, skirting the thin line between caution and confession?
The scale of his "alleged" crimes makes the reactions of his victims' acquaintances downright anomalous. One murder victim's family may trust the rule of law and accept that the suspected murderer was not convicted. But so many murders, and all perpetrated by the same person? After a while, the whole town should eventually have risen against him (possibly with torch and pitchfork) to exile him or kill him - even just one crazed vigilante would've given the story some grounding. There's a limit to how often people will say, "well, we can't find a murder weapon and he says he was nowhere near the scene of the crime, so we'll let him go as soon as he stops pointing at us and laughing."
That isn't believable.
If nothing else, I would expect there to be a counter-Mundo champ: perhaps someone who lost too many pets and family members to Mundo to abide the incompetence of Zaun's court system and now seeks to execute Mundo for vengeance and justice.
Or just fix the plot hole.
Or, y'know, they could say, "I can't believe Sheriff Whatshisface keeps arresting this guy without any evidence. Clearly he's heavily biased against an innocent man.
And then you get Intrepid Reporter Nicelady, running this "Police uses horrible tragedy to harass innocent man" story for all itls worth; and it gets pushed by corperate interests that wants the public to assume accusations of misconduct on the part of police officers isn't worth getting all hextech torch and pitchfork over.
So when Sheriff Whatshisface says "I'm sorry ma'am, but that Mundo killed your daughter," Momma Fakename's reaction is to rage, not against Mundo, but against Whatshisface for not doing his job
and putting a personal vendetta before catching her daughter's real killer.
Now, I don't like Dr. Mundo's lore, but that's really not a plot hole; nor is the lore internally nor externally inconsistent with the setting presented.