Even though she was kidnapped by ISIS from a Doctors Without Borders vehicle, and had helped a friend install equipment at a Doctors Without Borders hospital in Syria, the prestigious humanitarian group refused to help negotiate for the freedom of American hostage Kayla Mueller, her parents tell ABC News. Marsha and Carl Mueller of Prescott, Arizona, said the group refused to speak with them for months and then withheld critical information provided by freed Doctors Without Borders hostages -- information that directly concerned their daughter and was needed in order to begin negotiations for her release. Read more on NewsOK.com