At the same time, he vowed to avenge the people who were responsible for cleaning up the land-mine site and never to forgive his father.
Businesses that refuse to pay protection money may have their premises vandalized: emptying the contents of a septic waste truck through a window is a trademark tactic.
NPA 2011a: NPA, Heisei 22-nen boryokudan josei Yakuza Crime in 2010.