India, Aug. 27 -- The man who carried out the shooting at a school in Minneapolis on Wednesday was in his early 20s, and had no known significant criminal history, local police said.

He used three guns - a rifle, a shotgun, and a pistol - to fire "dozens of bullets" inside a church on the campus when a special Mass was on, the police chief told reporters at the scene. He died of self-inflicted injuries at the back of the church.

Not giving names yet, the officer said the man was wearing black clothes, "cargo-style pants", and fires shots through the windows of the church.

Asked if the perpetrator was a former student of the school, the officer said no such information was yet available.

The shooter arrived in a car, and his documents ...