AdvertisementFor U.S. Soldier Turned Aid Worker, The Goal Was To Help SyriansOctober 15, 2014Alison MeusefacebookEmailAbdul-Rahman Kassig, who was formerly known as Peter, is shown with a truck filled with aid supplies for Syrian refugees. The American aid worker was seized by the Islamic State in October 2013 and was killed by the group, which released a video Sunday of his beheading. (Courtesy of Kassig Family)