Looking at the people in front of him, Minos was trying to figure out what to do with these captives.
He could not simply leave these people here. They had witnessed the whole event, and it would be better if the Chambers family members who came by later knew as little as possible about what had occurred.
The Black Plain Army's soldiers were hiding their identities, but it was impossible to hide the techniques they had used. And with that alone, there would be a small clue, which Kevin's family could use.
As for the other people, who had either fled this place or those still around, Minos was not worried about them. They were captives who wanted to distance themselves from the Chambers or were members/subordinates of other noble families in the region.