After using a simple nightmare illusion to erase Ohm's recent memory, Angor stepped out of the workshop.
Without much to go by, he decided to look at Lucas' ship for more clues. And he was pretty surprised to actually receive useful information from Ohm.
Ohm claimed very firmly that Lucas was executed in the end, which contradicted Gurman's words, that Lucas "should have been executed".
But neither of them knew that Lucas went back to his ship, which meant something went wrong when people were writing down history records.
Another important fact was Lucas' "evil plot", about which both Gurman and the historical records mentioned but without going into any details.
What exactly did Lucas do?
As stated by Ohm, when Lucas' family declined to its worst state until he began to starve, he visited the king and offered to be a pioneer that discovered new lands by sailing across Devil's Water.