Newly published National Security Agency documents leaked by Edward Snowden have revealed Israeli naval commandos were responsible for the mysterious 2008 assassination of a top aide to Syrian President Bashar al-Assad. Muhammad Suleiman was shot and killed by a sniper while he was holding a dinner party at his beachfront home in Tartus, Syria. Details of the assassination were included in a secret NSA document titled Manhunting Timeline published by The Intercept on Wednesday.