Montreal's mafia mogul, Vito Rizzuto, had been arrested for racketeering, loan sharking, and murder some six years ago, and then was released from a U.S. prison lately.

He had been considered to be the most powerful mafia boss in Canada. And he's returned to Canada.

It has profound consequences on Quebec's society, considering the ongoing police investigation into the close links among Quebec's construction industry, mafia, and some Quebec politicians.