Hassan, left, sits with his younger brother Ali as they show off a family photo of them posing with their father Baha Mousa and their mother at their home in Basra. (ESSAM AL-SUDANI/AFP/GETTY IMAGES)

The two-year investigation was published in a 1,400-page report and went into graphic detail about the way British soldiers treated detainees.

A corporal named Donald Payne was accused of overseeing a “dreadful catalogue of unjustified and brutal violence on the defenseless detainees,” and was dubbed a “violent bully.”

 Mousa was judged to have died as a result of tremendous violence by members of the 1st Battalion the Queen's Lancashire Regiment.

The British government reacted swiftly to the inquiry, with British Foreign Secretary William Hague saying of the investigation: “We will do everything possible to prevent another Baha Mousa death.” Prime Minister David Cameron said, “This should not have happened,” and that “it should never be allowed to happen again.”

Mousa’s father, Daoud, said that “I remember Baha all the time. I look at his picture in my thoughts. He is, Baha is, in my heart. I love Baha. He is a good son.”

Mousa had a wife and two children.

Watch a video that has emerged along with the investigation, which is said to show a British soldier screaming abuse at hooded Iraqi detainees:

(Via Storyful.)