Nothing is what we thought

We all thought Banquodied at the hands of Macbeth, so he could proclaim himself the new king of Scotland.But it wasn't. Days after Macbeth was cleared the new king found Banquo's corpse,everyone was surprised when they discovered it wasn't Banquo if not his twin brother,since he had a birthmark on his right arm which Banquo didn't have, so this was Edwin's twin brother.
The people were surprised to see that it was not Banquo but Edwin, so now everyone wondered where their true king was.So they craved his reappearance because Macbeth was not worthy to be the king of Scotland.Because of this event, the whole town is anxiously awaited by King Banquo.