Warning, this shows killing of humans. Make your own judgement.
1945 in Italy
[youtube=http://www.youtube.com/watch?v=RY2ofCPk6Tc]
2007 in Iraq
[youtube=http://www.youtube.com/watch?v=5rXPrfnU3G09]
EDIT: apparently the latter video doesn’t work here (at least not for now), you can watch it at collateralmurder.org
There are numerous sites on the webz where you can find photos of these individuals actually carrying AK-47’s and grenade launchers. They were not shooting random people.
http://farm3.static.flickr.com/2774/4503958484_084c82e576_o.gif
Here’s a short clip showing weapons taken from the larger video.
http://mypetjawa.mu.nu/archives/201889.php
Wikileaks has this material and intentionally redacted it.