When I first interviewed him a year ago he was suspected of contacts with the insurgency. Certainly he supported resistance to US forces.
More recently, an-Ni'ami had dropped out of sight. Then, a little over a month ago, relatives say, paramilitary police commandos from 'Rapid Intrusion' found him at a family home in the Sha'ab neighbourhood of northern Baghdad. His capture was reported on television as that of a senior 'terrorist commander'. Twelve hours later his body turned up in the morgue.
What happened to him in his 24 hours in captivity was written across his body in chapters of pain, recorded by the camera. There are police-issue handcuffs still attached to one wrist, from which he was hanged long enough to cause his hands and wrists to swell. There are burn marks on his chest, as if someone has placed something very hot near his right nipple and moved it around.
A little lower are a series of horizontal welts, wrapping around his body and breaking the skin as they turn around his chest, as if he had been beaten with something flexible, perhaps a cable. There are other injuries: a broken nose and smaller wounds that look like cigarette burns.
An arm appears to have been broken and one of the higher vertebrae is pushed inwards. There is a cluster of small, neat circular wounds on both sides of his left knee. At some stage an-Ni'ami seems to have been efficiently knee-capped. It was not done with a gun - the exit wounds are identical in size to the entry wounds, which would not happen with a bullet. Instead it appears to have been done with something like a drill.
What actually killed him however were the bullets fired into his chest at close range, probably by someone standing over him as he lay on the ground. The last two hit him in the head.
The gruesome detail is important. Hanging by the arms in cuffs, scorching of the body with something like an iron and knee-capping are claimed to be increasingly prevalent in the new Iraq. Now evidence is emerging that appears to substantiate those claims. Not only Iraqis make the allegations. International officials describe the methods in disgusted but hushed tones, laying them at the door of the increasingly unaccountable forces attached to Iraq's Ministry of the Interior.
The only question that remains is the level of the co-ordination of the abuse: whether Iraq is stumbling towards a policy of institutionalised torture or whether these are incidents carried out by rogue elements.
... What is most shocking is that it is done under the noses of US and UK officials, some of whom admit that they are aware of the abuses being perpetrated by units who are diverting international funding to their dirty war.
Hassan an-Ni'ami may well have been a terrorist. Or he may have had knowledge of that terrorism. Or he may have been someone who objected too loudly to foreign troops being in Iraq. We will never know. He had no opportunity to defend himself, no lawyer, no trial. His interrogation and killing were a breach of international law.