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?
2004 Iraq churches attacks:  The six attacks killed at least 12 people and wounded at least 71. Abu Musab al-Zarqawi:  He was sometimes known as "Shaykh of the slaughterers".
i don't know