A toxicology result has revealed the attacker at Orly Airport over the weekend had consumed a cocktail of drugs and alcohol. Ziyed Ben Belgacem's blood alcohol level were also found to be at almost twice the legal limit for driving in France.
French Interior Minister Bruno Le Roux said at a press conference that the man was known to the police and intelligence services.
The 39-year-old French national tried to grab a Famas assault rifle from a young female solider of the air force who was patrolling the airport as part of the "Sentinelle" security operation before being shot dead, Molins added. With the soldier down on her knees, the suspect rose enough for the other two soldiers to shoot him several times.
Belgacem also had a criminal record, which included robbery and drug-related offences, Paris prosecutor Francois Molins said.
Police did not provide a motive for the attack, but the Paris prosecutors office said an investigation is being handled by the anti-terror division. Belgacem was investigated in 2015 over links to Islamist radicals forged in prison, but he was never put in the category of people considered high-risk.
"My son was not a terrorist". He has never prayed: he drinks.
When she managed to release herself momentarily from the attacker's hold, her two colleagues, one of them a reservist, opened fire and killed the man, the statement said. A few minutes later, he hurled himself at three soldiers on patrol in its South Terminal, throwing a bag with a gas can at the floor and wielding his 9 mm revolver, said Paris prosecutor Francois Molins.
Belgacem's brother and a cousin, who were detained soon after the Orly attacks, remained in custody on Sunday.
"He called me at seven, eight in the morning and said, "there you go, Papa", he was extremely angry, even his mother couldn't understand him", the man identified as the father said on Europe 1. French police said they later found a gas canister, lighter and copy of the Quran inside his backpack.
France's government has repeatedly extended a state of emergency following a series of bombings and shootings in November 2015 during which 130 people were killed. One officer suffered minor head injuries.
A spokesman for the Paris airport authority said that the backlog of travellers stranded by the chaos had been cleared and that passengers were experiencing only "slight delays". He abandoned his vehicle, stole another and drove to Orly airport.
Last month, calm in French capital had been broken once again after an Egyptian, 29, attacked a group of soldiers near Louvre Museum before being shot and seriously wounded.
"When there is a terrorist attack there is a tendency to want to blame local authorities, and I tend to be very hesitant to blame authorities".