@anzuda
then focus the investigation around legal loopholes and shits.
why care about his morality so much? only thing i can think of is that they want blackmail materials.
Then you just remembered that this old man is stupid enough to got framed and killed by his "idiot brother", who make his way up to control the entire city.
That ungraceful traditionalists hide themselves, threaten customers, imprisoned their saviors.
Only good thing about them is quality...