Julian Assange leaked this video on April 5, 2010.

Article: "A secret video showing US air crew falsely claiming to have encountered a firefight in Baghdad and then laughing at the dead after launching an air strike that killed a dozen people, including two Iraqis working for Reuters news agency, was revealed by Wikileaks today."

This attack occurred on July 12, 2007. See article and video link to YouTube here. Graphic video. Very, very sad. 👇

https://www.theguardian.com/world/2010/apr/05/wikileaks-us-army-iraq-attack