For a young soldier, war is a lesson in hard math: One best friend and three comrades, lost. Three limbs, gone. One marriage, ended. 130-plus surgeries, endured. But also: one family undivided, one will, unbroken.
Timothy Hwang was already making a name for himself as a student at Wootton High School. Now, the 22-year-old is inviting comparisons to the titans of tech with a smart new startup that's attracting major-league investors.