Assassins who killed Rafik Hariri, the former Lebanese prime minister, travelled from Iraq through Syria to carry out the attack, according to the Beirut judge leading the inquiry into the bombing. Rachid Mezher, the senior investigator for the Lebanese military tribunal, said that the organisers had been recruited from Islamist groups linked to Syria and operating against the US-led coalition in Iraq. Although no firm ties with the Syrian regime have been established, his comments suggest strong circumstantial evidence of a connection. Investigators believe that a suicide bomber drove a car laden with explosives into the 60-year-old billionaire's convoy last...