Oddly enough, it was Sunni Muslims misunderstanding their peaceful religion and murdering Shi'ites. Doubtless they somehow got old of some Islamophobic literature that confused them as to the nature of Islam.
"Baghdad blasts kill more than 30 over Eid holiday," by Raheem Salman for Reuters, October 27 (thanks to Kenneth):
BAGHDAD - Violence in Iraq has eased sharply, but Sunni Islamist insurgents and al Qaeda's Iraq wing often target Shi'ites in an attempt to stir up the kind of sectarian tensions that dragged the country close to civil war in 2006-2007.
Two car bombs exploded on Saturday, one ripping into a restaurant in the Shi'ite stronghold of Sadr City and killing at least 23 people, police and hospital sources said.
"I was just selling fruit and we were surprised by a huge explosion on the other side of the street," Hassan Falih Shami, a grocery stall owner near the site of the blast. "You can see pools of blood, the shoes and pieces of clothing."
Hours earlier, a roadside bomb planted near an open-air market killed seven people, including three children at a playground. Another blast killed six people when it hit a bus carrying Iranian pilgrims to a Baghdad shrine, police and hospital officials said....
Security officials had said they believe insurgents would try to carry out a large attack during the religious holiday, which started on Friday.
Car bombs exploded and mortars landed around the Shi'ite neighborhood of Shula, northwestern Baghdad, on Tuesday killing eight people and wounded 28, and another person was killed by a mortar round in Kadhimiya area.