In it we see Reuters journalists Namir Noor-Eldeen and Saeed Chmagh and others getting shot by the Apache on a square in Eastern Baghdad after they are apparently assumed to be insurgents. After this, an unarmed group of adults and children in a minivan arrives on the scene and attempts to transport the wounded journalists. They are then fired upon also. Just the visuals are pretty gruesome stuff.
Collateral Murder Wikileaks has acquired gruesome footage from a US military helicopter killing two journalists in Bagdad in 2007.