At least eight massacres have been perpetrated by Bashar al-Assad's regime and supporters in Syria, with one carried out by rebels over the past 18 months, according to the UN.
Calling Syria a battlefield where armed forces are getting away with large-scale murder, the UN commission investigating human rights abuses in Syria said that in each of the incidents since April 2012 "the intentional mass killing and identity of the perpetrator were confirmed to the commission's evidentiary standards."
Its latest report also notes that the four-member commission is probing nine more suspected mass killings since March. With those, it said, the illegal killing was confirmed but the perpetrator could not yet be identified. In other cases, it said, the circumstances of the killing were not sufficiently clear to be able to determine the legality.
Syria: Assad regime responsible for eight massacres, rebels one, UN says - Telegraph
The UN, reporting massacres like a soccer match score.