THE mass shooter who shot and killed two children and hurt 17 others at a Minneapolis school has been identified as Robin Westman.

Westman, 23, killed himself after opening fire through stained glass windows at the Catholic school during Mass on Wednesday morning.

Two students, aged 8 and 10, were killed in the shooting at Annunciation Church in southern Minneapolis, which started during the worship service at around 8:30 am, police said.

Officials said 17 other people were hurt in the attack after children rushed out of the building in their school uniforms before being reunited with their families in heartbreaking scenes.

Police sources identified the gunman as Robin Westman, according to the New York Post.

Westman was armed with a rifle, pistol, and handgun when he shot into the auditorium and reportedly tried to block the doors with a two-by-four.

Now, investigators are looking into a sick 11-minute video uploaded to YouTube in the hours before the murders, as it appears to be Westman’s manifesto.

The suspect could be heard giggling as he muttered to himself and showed off writings addressed to his family, as well as guns with disturbing messages on them.

Westman’s mom appeared to have retired from working at Annunciation Church back in 2021, according to a post by the church on Facebook.

Police haven’t identified a motive for the shooting.

The Minnesota Police Department didn’t immediately return The U.S. Sun’s request for comment.