I'll explain this all, very simply:
Paez is a scam artist who contacted Sabra, another scam artist, with forged bonds.
Sabra found Rufus through mutual connections, she got him connected with Alexander.
The Venezuelan scam artists threatened Sabra because of all the publicity around the company, she pulled the forged bonds.
Rufus tried to scam the stock market, it didn't work. And now he'll most likely go to jail, unfortunately, without some of othe others who should also be serving time.
Does that make it clear?