The story of Kayla Mueller, a 25-year-old American aid worker in Turkey whose quick trip over the Syrian border to Aleppo in August 2013 turned into a hellish captivity ending with her death in February 2015, got new life last week when ABC News 20/20 ran an hour-long special: "The Girl Left Behind."

We've reported on how the network, which has been following Mueller’s story for years, has sounded confused as to whether Kayla's faith played a role at all in her travails. Now they've come up with many new details about her captivity, including a tortuous final year where she was forcibly “married” to ISIS “caliph” Abu Bakr al-Baghdadi. even though she had not converted to Islam, as has been alleged before. Plus, she had stood up to the notorious “Jihadi John” about her Christian faith.

ABC went out of its way to emphasize the latter with this headline to their story: “Kayla Mueller in captivity: Courage, selflessness as she defended Christian faith to ISIS executioner ‘Jihadi John.’ Here is how the written summary begins:

American hostage Kayla Mueller was tortured, verbally abused, forced into slave labor for ISIS commanders in Syria and raped by the group's top leader, but her fellow hostages say she never surrendered hope, she selflessly put the welfare of fellow captives above her own and she even stood up to executioner "Jihadi John" to defend her Christian faith.

Four former hostages who shared cells with Mueller, speaking publicly for the first time about their shared ordeal for ABC News' "20/20" broadcast, "The Girl Left Behind," airing Friday, say the Prescott, Arizona, humanitarian aid worker was a courageous 25-year-old who inspired them.

The report, narrated by investigative correspondent Brian Ross, had come up with lots of new details and new video (see above) about her 18 months of captivity.