JERUSALEM  - Israeli border guards shot dead on Wednesday a Palestinian teenager in the West Bank city of Hebron, sparking stone-throwing attacks on troops in the area, police and witnesses said. An Israeli police spokesperson said, “A Palestinian brandished a pistol as he approached a post of border guards, who opened fire and killed him.”Palestinian sources named the teenager as Mohammed Ziad Salaima, aged 16, and witnesses said that Palestinians began throwing stones at Israeli troops in the area following his death.