- Live updates: Police investigate Wisconsin school shooter’s motive The Washington Post
- Madison, Wis., residents hold candlelight vigil as police search for motive in school shooting: Here’s what we know so far Yahoo! Voices
- Court records point to troubled home life for Wisconsin school shooter The Washington Post
- Police chief says motive for Wisconsin school shooting was a ‘combination of factors’ The Associated Press
- Madison school shooting underlines how female school shooters are statistically rare Milwaukee Journal Sentinel