A US sailor has died from wounds sustained in an attack on military buildings in Chattanooga, Tennessee, two days ago, the US Navy says. The death of logistics specialist Randall Smith brings to five the number of people killed by gunman Mohammad Youssuf Abdulazeez. The other four victims were US marines. Abdulazeez was himself later killed in a shootout with police. The FBI has said his motives for the shooting were unclear....
