Complex sentence: Catherine visits "Jessie" in prison, and while they talk, Catherine is confronted with the sister of one of her victims (the publisher) and Paul, who is clearly not dead, and now aware that Catherine was in fact, after his money.
Split into simpler sentences: Catherine visits "Jessie" in prison, and while they talk, Catherine is confronted with the sister of one of her victims (the publisher). Then Paul enters the room, clearly not dead, and now aware that Catherine was in fact, after his money.