Terry Gou says he has no idea why so many of his employees are killing themselves. Gou is the founder and chairman of Foxconn, the world's largest electronics contract manufacturer—the maker of iPhones and iPads for Apple (AAPL), computers for Dell (DELL), and countless other devices for well-known high-tech customers around the world. So far this year, 10 Foxconn workers have committed suicide. "From a logical, scientific standpoint, I don't have a grasp on that," Gou told reporters on May 27 at a press conference at the company's vast production facility in Shenzhen, China. "No matter how you force me, I don't know."