On July 2001, Saudi Arabia said that eleven of the people indicted in the US were in custody in Saudi prisons, and were to be tried in Saudi court, as the country refused to extradite any of them to the United States to stand trial.
[20] The government has not since made public the outcome of the trial or the whereabouts of the prisoners. In August 2015, Arab newspaper
Asharq Al-Awsat reported that Ahmed Ibrahim Al-Mughassil, a leader of the gulf shia group
Hezbollah Al-Hejaz found to be responsible for the bombing, had been arrested in Beirut and transferred to Saudi Arabian custody; an anonymous American intelligence officer told
The New York Times that the Saudi government had not confirmed the arrest, but U.S. intelligence believed the report was accurate.
Attribution to al-Qaeda
Abdel Bari Atwan wrote:
In May 1996 Bin Laden and his entourage moved from Sudan to Afghanistan. As if to make the point that they might have been chased out of Sudan by Saudi Arabia and the US they were not leaving with their tails between their legs, al Qaeda struck again: The June bombing of Khobar Towers.
The Saudi authorities were at pains to implicate Shi'i militants backed by Iran in this attack, since the embarrassing truth that they had their very own homegrown militancy problem was inadmissible; they did not want to give the impression that there was domestic opposition to the deployment of US troops on Saudi soil. In 2004, the
9/11 Commission noted that
Osama bin Laden was seen being congratulated on the day of the Khobar attack, and stated there were reports in the months preceding the attack that Bin Laden was seeking to facilitate a shipment of explosives to Saudi Arabia. According to the United States, classified evidence suggests that the government of
Iran was the key sponsor of the incident, and several high-ranking members of
their military may have been involved.
A U.S. federal court speculated that the Khobar Towers bombing was authorized by
Ali Khamenei, the
Supreme Leader of Iran.