that time, the Spanish Airforce was also giving support with a single C-130. The Dutch, commanded by LtCol Bob "Body" Verkroost, remained until the presidential elections of 9 October 2004 elected Hamid Karzai as president of Afghanistan. The last F-16 mission was flown on 19 November 2004 at which time the F-16s were withdrawn to their homebase of Volkel Airbase in the Netherlands, while the KDC-10 flew the personnel back to Eindhoven Airport. The Dutch returned with F-16s to the Afghan theatre in 2005 but at that time began operating out of Kabul Airport. Tulip Revolution The Tulip Revolution of March 2005 led to the toppling of Kyrgyz president Askar Akayev. However, American and allied personnel did not find themselves disrupted or affected, according to international news reports. One military member even indicated, "It's been business as usual...We did not miss a single flight." In April 2006, Kyrgyzstan's new president, Kurmanbek Bakiyev, threatened to expel U.S. troops if the United States would not agree by 1 June to pay more for stationing forces in the Central Asian nation. He later withdrew this threat. On 6 September 2006, U.S. Air Force officer Maj. Jill Metzger went missing after being separated from her group while visiting a shopping center in Bishkek. She was found three days later in the nearby city of Kant. After an Air Force investigation, it was confirmed in February 2012 that Metzger had indeed been kidnapped as she had claimed. December 2006 shooting On 6 December 2006, U.S. serviceman Zachary Hatfield fatally shot Alexander Ivanov, a Kyrgyz civilian, at a truck checkpoint at the base. A statement from the base stated the airman "used deadly force in response to a threat at an entry control checkpoint". Ivanov, a truck driver for Aerocraft Petrol Management, was waiting to finish the security check before proceeding into the U.S.-controlled area. According to a base spokesman, "As the airman approached the tent, the driver physically threatened him with a knife which was discovered at the scene. The airman drew his 9mm weapon and fired in self-defense." Hatfield fired two shots into Ivanov's chest, killing him. The killing drew widespread condemnation from Kyrgyz authorities and they quickly demanded that Hatfield's immunity from local prosecution be revoked. In the meantime, U.S. authorities agreed to have Hatfield remain in Kyrgyzstan until the matter is resolved. Another issue to come out of the shooting was that