- A card at a memorial to the victims asked the question haunting all of Belgium: "Why?"

Why did Nordine Amrani, a 33-year-old with a history of lawbreaking, sweep into this city's holiday shopping center to unleash a grenade-and-gun rampage that killed three people and wounded 123 others? Why did he then kill himself?

Deepening the mystery, police announced yesterday that another body had been found, that of a 45-year-old woman, in a shed where Amrani grew cannabis close to his home.

Liege prosecutor Daniele Reynders said, after searches of Amrani's house, terrorism could be excluded.

"It was a cleaning lady. This is how she met him yesterday morning," she said. "She dies, shot with a bullet in the head."

The Ferris wheel at Liege's Christmas market started turning again yesterday, hoping to restore some festive cheer, but the mood remained as black as the coal that once drove this rustbelt city in eastern Belgium.

At the outdoor bus depot that Amrani attacked, a parade of people bundled against the wind and rain paid tribute to the victims, who included a 1 1/2 year-old toddler and two teenage boys, both students. Five others are reported in critical condition.

In the capital, Brussels, the government pledged to toughen the gun law and put stricter controls on multiple offenders on conditional release. Amrani, who had done jail time for offenses involving guns and drugs, had been called in for questioning Tuesday by police in a sexual-abuse case.

Amrani's lawyer said his client had been particularly scared over the last few days that he would be jailed again.

It is unclear, however, if this was the tipping point.

"He was extremely nervous," Jeann-Francois Dister told VRT network. "He was impulsive but what he did was unbelievable."

Even though he still had more grenades and more rounds of ammunition with him, Amrani turned a gun on himself and shot himself in the face.

Officials said he left his Liege home with a backpack, armed with hand grenades, a revolver and an FAL assault rifle. He walked alone onto a busy downtown square, then got onto a platform that gave him an ideal view of the area and lobbed three hand grenades toward nearby bus shelters, explosions that scattered glass across a wide area. He then opened fire on the crowd.

In Liege, a melting pot of immigrant communities whose members worked the blast furnaces and coal mines for decades, some people feared a backlash: Amrani had a foreign heritage, even if he was Belgian-born. In Belgium, racial stereotypes tend to surface quickly when crime is involved.

"This man? I didn't know him. I just know that he is a Moroccan," said Amrani's neighbor Wihelmina Schwartz.

Cedric Christiaens, a 20-year-old language student living close to the square, said the outrage will only increase when more people realize that Amrani was able to walk the streets on conditional release despite previous jail time and convictions for illegal gun possession and drugs.

"It was a shock to learn that he could go about his business like that," said Christiaens.