DERBY, Kan - The Sedgwick County Sheriff's Office has released the name of a teen from Derby killed in an accident early Saturday southeast of Derby. 14-year-old Braxton Kooser was pronounced dead at the scene, near 87th Street South and Webb Road. Investigators say Kooser was a passenger in a Dodge Durango. The driver -- 14-year-old Caleb Sheldon -- lost control and the vehicle rolled. Sheldon, 15-year-old Alex Helt, and 15-year-old Kaleb Kelley were hospitalized.