Security guards working for Blackwater Worldwide shoot and kill 17 Iraqis in Nisour Square, Baghdad.

Nisour Square massacre

2007 mass shooting in Iraq

The Nisour Square massacre occurred on September 16, 2007, when employees of Blackwater Security Consulting, a private military company contracted by the United States government to provide security services in Iraq, shot at Iraqi civilians, killing 17 and injuring 20 in Nisour…