Could be this:
collateralmurder.wikileaks.org/
The media attention to the Elmer case came more than two years before WikiLeaks parlayed that fame into greater attention by publishing a leaked US military video that it titled “Collateral Murder.” The video, shot from the air, showed an Apache-helicopter attack that killed a dozen people in an Iraqi suburb, including two Reuters employees. The month that video was released, April 2010, WikiLeaks raised some $440,000 in donations, according to a report by the foundation that managed much of WikiLeaks’ finances at the time.
the military Apache video that was leaked:
youtu.be/5rXPrfnU3G0