It’s Southeast Asia’s biggest ever fraud, amounting to $12.5 billion and embroiling some of Vietnam’s top bankers and officials. And on Thursday, a Ho Chi Minh City court reached its verdict: a death sentence for Truong My Lan, a highflying 67-year-old businesswoman who began life hawking cosmetics from a market stall in the southern city before in 1992 founding Van Thinh Phat, a sprawling company which developed luxury apartments, offices, hotels, and shopping malls.