The owner and the manager of a San Francisco printing plant have been charged with involuntary manslaughter and labor code violations in the 2008 death of a pregnant worker who was crushed to death by a cutting and creasing machine at the plant. The owner of Digital Pre-Press International, Sanjay Sakhuja, 52, of Alameda and the pressroom manager Alick Yeung, 50, of San Francisco, have been charged with manslaughter and a willful violation of labor laws in the January 29, 2008, death of Margarita Mojica, 26. Sakhuja and Yeung were expected to surrender Tuesday. Sakhuja's bail is set at $300,000...