The&nbsp;man who killed two police officers and a civilian in Belgian city of Liege on Tuesday has been suspected of killing one other person on the eve of his rampage, prosecutors said Wednesday.

The 36-year-old man is "suspected of manslaughter" in a separate investigation into the death of a man the night before Tuesday's rampage, Eric Van Der Sypt, spokesman for federal prosecutors, told a press conference.

On Wednesday, the prosecutors said that&nbsp;attacker's modus operandi inspired by Islamic State.

"These first elements have to be understood as the modus operandi regularly shown on the internet by IS in their video messages suggesting to attack the police with a knife and rob them from their service weapons. Also the fact that the perpetrator shouted at different times "Allahu Akbar" and finally the information furnished by the Federal Police of Liege and the State Security Service according to which the perpetrator was in touch with radicalized persons," he said.&nbsp;

Also read:&nbsp;<a href="http://www.wionews.com/world/terrorist-attacker-kills-three-in-belgiums-liege-gunman-dead-140693">&nbsp;'Terrorist' attacker kills three including 2 women cops in Belgium, gunman dead</a>

On Tuesday, the attacker stabbed the women police officers first and then used their own weapon to fire shots before walking down the street and shooting dead a 22-year-old man who was sitting in the passenger seat of a parked car.

The man then made his way into a high school where he took a woman employee hostage, triggering a major intervention by armed police. Pupils were moved to safety as a gunbattle broke out that sent people in the street racing for cover. Several police&nbsp;officials were wounded before the attacker was finally killed.&nbsp;

As per UK based reports, the police identified the gunman as Benjamin Herman, 36, from Rochefort, a city close to Liege. He had been involved in criminal activities such as robbery, assault, and drug-dealing and was well-known to the police.&nbsp;

Also read:&nbsp;<a href="http://www.wionews.com/world/belgium-shooting-gunman-had-recently-been-let-out-on-day-release-from-local-prison-140695">Gunman had recently been let out on day-release from local prison</a>

Interior Minister Jan Jambon said authorities were still examining the motives of Benjamin Herman, a drug dealer who had been in jail for years but was let out for two days on Monday to prepare for an eventual release in 2020.

But federal prosecutors said there was evidence that they were dealing with “terrorist murder”.

The 36-year-old man is 'suspected of manslaughter' in a separate investigation into the death of a man the night before Tuesday's rampage, Eric Van Der Sypt, spokesman for federal prosecutors, told a press conference

The man who killed two police officers and a civilian in Belgian city of Liege on Tuesday has been suspected of killing one other person on the eve of his rampage, prosecutors said Wednesday. The 36-year-old man is "suspected of manslaughter" in a separate investigation into the death of a man the night before Tuesday's rampage, Eric Van Der Sypt, spokesman for federal prosecutors, told a press conference. On Wednesday, the prosecutors said that attacker's modus operandi inspired by Islamic State. "These first elements have to be understood as the modus operandi regularly shown on the internet by IS in their video messages suggesting to attack the police with a knife and rob them from their service weapons. Also the fact that the perpetrator shouted at different times "Allahu Akbar" and finally the information furnished by the Federal Police of Liege and the State Security Service according to which the perpetrator was in touch with radicalized persons," he said. Also read: 'Terrorist' attacker kills three including 2 women cops in Belgium, gunman dead On Tuesday, the attacker stabbed the women police officers first and then used their own weapon to fire shots before walking down the street and shooting dead a 22-year-old man who was sitting in the passenger seat of a parked car. The man then made his way into a high school where he took a woman employee hostage, triggering a major intervention by armed police. Pupils were moved to safety as a gunbattle broke out that sent people in the street racing for cover. Several police officials were wounded before the attacker was finally killed. As per UK based reports, the police identified the gunman as Benjamin Herman, 36, from Rochefort, a city close to Liege. He had been involved in criminal activities such as robbery, assault, and drug-dealing and was well-known to the police. Also read: Gunman had recently been let out on day-release from local prison Interior Minister Jan Jambon said authorities were still examining the motives of Benjamin Herman, a drug dealer who had been in jail for years but was let out for two days on Monday to prepare for an eventual release in 2020. But federal prosecutors said there was evidence that they were dealing with “terrorist murder”.

Belgium shooting: 'Terrorist' attacker killed fourth person day before Liege attack

A gunman on Tuesday fired shots in eastern Belgium's city of Liege killing two police officers and one civilian as a terrorist incident before being shot, the local public prosecutor told a news conference.

As per UK based reports, the police identified the gunman as&nbsp;Benjamin Herman, 36,&nbsp;from Rochefort, a city close to Liege. He had been involved in criminal activities such as&nbsp;robbery, assault, and drug-dealing and was well-known to the police.&nbsp;

The 36-year-old petty criminal&nbsp;had been let out on day-release from a local prison on Monday. Police said investigators were looking into whether he converted to Islam and had been radicalised in jail, Reuters reported.

However, the government had not listed Herman&nbsp;as a potential terrorist, according to local media, but had been in contact with radicalised prisoners during his multiple times in jail.

The prosecutor said the man attacked the two officers from behind with a knife, took one of their guns and shot them both dead.

The&nbsp;attacker then shot dead a 22-year-old man in a nearby vehicle, before taking refuge in a school where he was killed in a subsequent gunfight during which several other policemen were wounded.

The gunman had also taken a female cleaner hostage at the school before being killed by police.&nbsp;

La Libre Belgique newspaper quoted a police source as saying the gunman shouted Allahu Akbar — God is greatest in Arabic -- and RTBF said investigators believed the attacker may well have had a terrorist motive.

The reason behind the shooting is not clear yet, investigations are still on.&nbsp;

Belgian police and military have been on alert since suicide bombers killed 32 people at the Brussels airport and subway system in 2016.

The prosecutor said the man attacked the two officers from behind with a knife, took one of their guns and shot them both dead

A gunman on Tuesday fired shots in eastern Belgium's city of Liege killing two police officers and one civilian as a terrorist incident before being shot, the local public prosecutor told a news conference. As per UK based reports, the police identified the gunman as Benjamin Herman, 36, from Rochefort, a city close to Liege. He had been involved in criminal activities such as robbery, assault, and drug-dealing and was well-known to the police. The 36-year-old petty criminal had been let out on day-release from a local prison on Monday. Police said investigators were looking into whether he converted to Islam and had been radicalised in jail, Reuters reported. However, the government had not listed Herman as a potential terrorist, according to local media, but had been in contact with radicalised prisoners during his multiple times in jail. The prosecutor said the man attacked the two officers from behind with a knife, took one of their guns and shot them both dead. The attacker then shot dead a 22-year-old man in a nearby vehicle, before taking refuge in a school where he was killed in a subsequent gunfight during which several other policemen were wounded. The gunman had also taken a female cleaner hostage at the school before being killed by police. La Libre Belgique newspaper quoted a police source as saying the gunman shouted Allahu Akbar — God is greatest in Arabic -- and RTBF said investigators believed the attacker may well have had a terrorist motive. The reason behind the shooting is not clear yet, investigations are still on. Belgian police and military have been on alert since suicide bombers killed 32 people at the Brussels airport and subway system in 2016.

Belgium shooting: Gunman had recently been let out on day-release from local prison

A man shot dead two police officers in the centre of the eastern Belgian city of Liege on Tuesday and was himself shot dead after having taken a woman hostage, public broadcaster RTBF said on its website.

Local prosecutors were not immediately available for comment.

A man shot dead two police officers in the centre of the eastern Belgian city of Liege on Tuesday and was himself shot dead after having taken a woman hostage, public broadcaster RTBF said

A man shot dead two police officers in the centre of the eastern Belgian city of Liege on Tuesday and was himself shot dead after having taken a woman hostage, public broadcaster RTBF said on its website. Local prosecutors were not immediately available for comment.

Killer of two police shot dead in Belgium: Public broadcaster

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Belgium shooting: 'Terrorist' attacker killed fourth person day before Liege attack

Belgium shooting: Gunman had recently been let out on day-release from local prison

Killer of two police shot dead in Belgium: Public broadcaster