Question: The Jordanian jihadist who was also known as the "Shaykh of the slaughterers" was blamed for the deaths of how many during the 2004 Iraq churches attack in 2004?
{'answer': '12', 'supporting_facts': [['2004 Iraq churches attacks', 0], ['2004 Iraq churches attacks', 1], ['Abu Musab al-Zarqawi', 0], ['Abu Musab al-Zarqawi', 2]]}