A KUWAITI man who complained about maltreatment while jailed in the US prison at Guantanamo Bay, Cuba, was involved in a deadly suicide bombing in northern Iraq last month, the US military said on Wednesday.Abdallah Salih al-Ajmi, 29, whom the US military accused of fighting with the Taliban in Afghanistan and wanting to kill Americans, was involved in one of three suicide bombings that killed seven Iraqi security personnel in Mosul on April 26, Defence Department officials said.They said that after his release in Kuwait, Ajmi went to Iraq via Syria. Military officials said his motives were unclear, but they said that in a martyrdom audio recording before his death he had implored people to take part in suicide bombings to attack Americans.In portions of the recording translated by the American SITE Intelligence Group, a voice is heard decrying the conditions at Guantanamo as "deplorable" and urging others to fight. "Whoever can join them and execute a suicide operation, let him do so. By God, it will be a mortal blow. The Americans complain much about it. By God, in Guantanamo, all their talk was about explosives and whether you make explosives. It is as if explosives were hell to them."The suicide bombing is the first such attack in Iraq linked to a former Guantanamo detainee, although the Defence Intelligence Agency has estimated that as many as three dozen former Guantanamo detainees are confirmed or suspected of having returned to terrorist activities.Human rights groups and lawyers for Guantanamo detainees have disputed that estimate, saying only a handful of former detainees have left custody and gone on to fight US forces.Ajmi was held in Guantanamo until late 2005, when he was transferred to the custody of the Kuwaiti Government as part of a diplomatic arrangement. At hearings in Guantanamo he maintained his innocence and said he never fought with the Taliban or meant anyone any harm. In 2006 he was tried in a Kuwaiti court, with a group of other alleged terrorists, and acquitted.Thomas Wilner, a Washington lawyer who represented Ajmi in seeking a habeas corpus hearing when he was held at Guantanamo Bay, said on Wednesday that Ajmi was young and not well-educated and he appeared deeply affected by his jailing there. The Washington Post