Bill O'Reilly weighed in on the death of ISIS hostage Kayla Mueller during Talking Points Memo tonight.

"The Factor" host explained that the parents of Mueller were contacted by ISIS, "who provided proof that she was killed."

Mueller had been held hostage by ISIS since August 2013 after being captured in Syria. The terrorist group claimed that the 26-year-old was killed by a Jordanian airstrike, but that has not been confirmed. 

President Obama released a statement earlier today stating, "the United States will find and bring to justice the terrorists who are responsible for Kayla's captivity and death."

But O'Reilly noted that Obama has previously rejected advice about how to defeat ISIS, putting into question how the president truly plans to take action. 

"The fact that these jihadists have been able to continue to murder civilians with impunity should trouble the entire world," O'Reilly said. "As Talking Points has mentioned, President Obama has received advice about terrorism from two former defense secretaries, advice that he has rejected."

"To allow the jihad to continue its reign of terror without a solid plan strikes me as irresponsible and dangerous," he remarked.

Watch the video above to hear more.