backed tribunal investigating the assassination of former Lebanese Prime Minister Rafik Hariri has called on the four suspects to turn themselves in, promising they will get a fair trial. In an open letter published Thursday, Judge Antonio Cassese said the four should at least name lawyers and consider testifying by video, since their trials will proceed later this year without their presence if necessary. In June, The Special Tribunal for Lebanon indicted the four members of the Iranian-backed guerrilla group Hezbollah for alleged involvement in the 14 Feb., 2005, truck bombing that killed Hariri and 22 others. Hezbollah, which dominates Lebanon's government, denies involvement and says it cannot find the suspects. In Lebanon, meanwhile, a bomb went off in a north Beirut suburb Thursday, killing two people and damaging several cars, including one belonging to a judge, security officials said. It was not immediately clear if the bomb in the busy suburb of Antelias went off by mistake or whether it had a timer, the security officials said. They spoke on condition of anonymity, in line with regulations.The explosion in a parking lot damaged at least four cars, including one with judicial license plates, the officials said. The officials said they do not believe the judge was the target since his car has been recently used by his son, an engineer. One of the two men reportedly handling the bomb died almost immediately, while another was seriously wounded and died later in hospital, security officials said. The man who was seriously wounded appeared to have been laying on the ground when the bomb exploded, tearing off his right arm and left leg, the officials said. It was not clear if he was placing the bomb under the car or trying to throw it away, the officials said.