Belgian gunman killed cleaner before market rampage

Police still hunting for motive behind attack on Christmas shoppers, Belgium's deadliest in 25-yrs
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People leave tributes at the site of yesterday's gun and grenade attack in central Liege (Getty Images)
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Nordine Amrani launched an attack in the busy marketplace of central Place Saint-Lambert, in Liege, leaving four dead and 125 people wounded (Getty Images)
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A picture taken on shows police seals on the door of the warehouse of Nordine Amrani, where the dead body of a cleaning lady was found after the Dec 13 shooting and grenades attack (AFP/Getty Images)
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A picture taken on December 14, 2011 shows the warehouse of Nordine Amrani (AFP/Getty Images)
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The lone gunman armed with grenades who went on a murderous spree in the Belgian city of Liege shot himself in the head after slaying three youngsters on a crowded square and killing a woman (Getty Images)
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'Nordine Amrani committed suicide with a bullet to the head,' said attorney of Liège Danièle Reynders (C). 'He left no message to explain his act' (AFP/Getty Images)
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The body of a cleaning woman was found at a warehouse used by Amrani, killed before he headed on Tuesday for a central Liege square to attack people (AFP/Getty Images)
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Investigators were still trying to establish a motive for Belgium's deadliest attack in almost 25 years (AFP/Getty Images)
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People leave tributes at the site of yesterday's gun and grenade attack in central Liege on December 14, 2011 in Liege, Belgium. Nordine Amrani launched an attack in the busy marketplace of central Place Saint-Lambert, in Liege, leaving four dead and 125 people wounded, yesterday lunch time. (Getty Images)
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People leave tributes at the site of yesterday's gun and grenade attack in central Liege on December 14, 2011 in Liege, Belgium. Nordine Amrani launched an attack in the busy marketplace of central Place Saint-Lambert, in Liege, leaving four dead and 125 people wounded, yesterday lunch time. (Getty Images)
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Municipal workers arrive to clear up at the Place Saint-Lambert in Liege on December 14, 2011, a day after a lone Belgian gunman went on a murderous spree in the city, killing four people before turning a gun on himself. As a shocked nation sought to understand the motives behind the carnage wrought by 33-year-old Nordine Amrani, tearful residents lit candles and laid wreaths on the city's rain-swept central Saint Lambert Square , scene of the attack the previous day. (AFP/Getty Images)