People from the underworld often exhibit arrogance.
People should know our work.
They want to create fear in people's minds.
Can you see that here?
Given the brutality of his killings, he's likely a serial killer.
Serial killing is a mental ailment.
There's a pattern to it.
I don't see that pattern here.
What if a victim's family member sought revenge on these criminals?
Revenge. You have a point there.
If it were revenge, he should've only killed those who wronged him.
Why did he kill so many people?
He doesn't want others to suffer the same injustice he experienced.