PARIS – All seven victims of a shooter spreading terror in southwest France were killed with bullets to the head, shot at such close range that the gunfire burned the skin, a prosecutor said Tuesday.

French Police spread out across the region by the hundreds, hunting for an expert gunman who may have neo-Nazi ties or grudges against minorities.

The gunman is suspected of carrying out three deadly attacks: killing four people Monday at a Jewish school in Toulouse, three of them young children; shooting dead two French paratroopers and seriously wounding another Thursday in nearby Montauban; and shooting dead another paratrooper in Toulouse on March 11.