Obama confirms death of aid worker help captive by ISIS

President Barack of the United states has confirmed the death an aid worker held hostage by ISIS.Obama on Tuesday confirmed the death of Kayla Mueller who had been held hostage by Islamic State militants.

Mueller's family said in a statement that they were "heartbroken" to learn of her death and released a copy of a letter she had written in 2014 while in captivity.26 year old Mueller was killed on Friday when Jordanian fighter jets bombed a building where she was being held.

After her death, her captors reached to her family through a private message stating that she was deceased.Mueller was the last American hostage ISIS had.

Obama swore that Kayla's killers will be brought to book. He said;

"No matter how long it takes, the United States will find and bring to justice the terrorists who are responsible for Kayla's captivity and death,"