Gunmen in a green minivan opened fire on a group of teenagers waiting at a bus stop near a Detroit school, wounding four boys and three girls aged from 14 to 17. A 16-year-old boy and a girl aged 17 are in a critical condition. Five of the teenagers had just left classes at summer school when they were shot yesterday afternoon. Detroit public schools police chief Roderick Grimes said two gunmen "asked for a person by name" before opening fire.