A shooter opened fire during Mass at a Minneapolis Catholic school, killing two children and injuring 18 other people.

An assailant armed with three guns fired through stained-glass windows into a Catholic church where parish school students were attending Mass on Wednesday, killing two children and wounding 17 other people,

In the first week of school, gunfire erupted at Annunciation Catholic School in south Minneapolis. Massive police and federal response descends on neighborhood. The gunman was reported to be dead.