What Michael said immediately made Greg feel bitter and chagrined.
In fact, before he kicked Alexander out of the family, Alexander had already reminded him to investigate Lucas's identity and background. During the family meeting later, his brother had also suggested finding out Lucas's identity before taking action.
But Trevor had conclusively declared that Lucas was just an outcast of the Huttons and didn't have a powerful background. Even if they killed him, no one would stand up for him. So Greg had believed what Trevor said and didn't bother investigating Lucas properly.
As a result, things ended up this way.
Damn it.
What should I do now?
After all, Lucas had killed his grandson. If he let him off just like that, how would he explain it to his son? How would he explain it to the rest of the Steeles?