A US marine sergeant accused of murdering 24 Iraqi citizens in the town of Haditha in 2005 stands trial this week.
Staff sergeant Frank Wuterich is charged with voluntary manslaughter and with other crimes. He will be tried by a jury of marines.
The prosecution says Wuterich stood at the foot of a bed in a back bedroom, spraying a woman and children with bullets.
He is the last of eight initially accused marines to face trial. Six had their charges dropped or dismissed, and one was acquitted.
The US military tried to cover up the Haditha massacre. At first there was no investigation. It was only after a Time magazine journalist began to ask questions that any of the details came out.
• The private security firm that previously operated as Blackwater made payouts this week to victims and their families from when the company operated in Iraq.