(PARIS) -- The French government has confirmed that the gun used to kill three French paratroopers last week is the same gun that a shooter used to fire on a Jewish school in Toulouse Monday morning, killing four, including a 30-year-old rabbi and his two children.
The shooter, who arrived and fled from the Ozar Hatorah school on a scooter or a motorcycle, "shot at everything he could see," according to local prosecutor Michel Valet.
The dead included Rabbi Jonathan Sandler, who taught at the school, his 3- and 6-year-old sons Gabriel and Arieh, and the school headmaster's 8-year-old daughter, according to the Israeli newspaper Ynet. Sandler, a French-Israeli national, had left Israel last September to begin a two year teaching stint at the school, according to the Le Parisien newspaper.
A 17-year-old and two other students were seriously wounded.
French interior ministry spokesman Pierre-Henry Brandet confirmed to ABC News that the same gun was used in two other incidents where a shooter targeted his victims while driving a motorcycle in the same area. Last Sunday, a paratrooper out of uniform was killed by a gunman on a motorbike outside of a gym in a suburb of Toulouse.
On Thursday, two soldiers were killed and a third wounded by a shooter on a scooter as they used an ATM in Montauban, about 30 miles away.
The same .45 caliber handgun was used in the shootings last week and Monday morning. All the paratroopers targeted were of North African descent. French media is also reporting that the same stolen Yamaha scooter was used in the school shooting and in last week's attack.
Police say they have locked Toulouse down as they hunt for the killer, and the government tightened security at all religious sites in France, particularly Jewish schools. Sixty police officers, including anti-terrorist police, are helping with this investigation after they had already begun examining the attacks on the troops.
French President Nicolas Sarkozy, who is running for re-election, immediately flew to Toulouse, which is about 425 miles south of Paris.
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