A Marietta firefighter was killed and two fellow firefighters were injured when the vehicle they were driving was hit by a suspected drunk driver, Monday night. According to authorities, 23-year-old Ron Herens of Powder Springs, was driving in Los Angeles with four other members of the Marietta Fire Department around 10 p.m. Monday when the accident happened. Herens was ejected from the vehicle during the crash and was pronounced dead at the scene. The other two firefighters were taken to the hospital. One was treated for a possible broken collarbone and hip and the other was treated for lacerations he sustained in the crash. A couple in a third vehicle was also involved in the crash but they were not injured.