Well, a pair of claimed Masons can always just be scum lying about their roles to cover each other (and hoping neither gets eliminated to expose the deception), and not all Vigilantes kill immediately.In post 1348, Dunnstral wrote: But you said you don't believe there can be 2 investigative roles in 1335, so you're not expecting a cop.
Friendly neighbor and Mason don't need a rolecop to check them to be confirmed town. Neither does Innocent Child.
Vigilante is obvious because an extra person dies - again, doesn't need to be checked.
And again, Juggernaut is an immediate guilty.