His actions might not be the best but it was certain that he had set up the right example to warn anyone who wants to get involved in lowly underworld business.
He was willing to do even worse to anyone else who gets caught connecting the family to the underworld in such a disgraceful man.
His grandfather might not give them such a public disgrace but his grandfather would definitely ensure they don't survive the decision they made.
It was just too normal in his life to lose something in an attempt to gain something. He wasn't completely indifferent over the news but he was certain the victims of those attacks would be glad about the vengeance.
He tried to get back to the work he was doing before he got the report from his secretary but the weight of the news did not get lifted even as he tried to justify his actions.