A teenage shooter opened fire at a Wisconsin school on Monday, killing a fellow student and a teacher and wounding six other people before police found the suspect dead at the scene.
The substitute teacher was covering for another educator who had gone on vacation this week, according to a parent.
Natalie Rupnow gunned down the substitute, and another teenager, and wounded five others before taking her own life in a mass shooting at the Abundant Life Christian School in Madison on Tuesday.