Guilty plea due in Michigan school shooting that killed four students

Ethan Crumbley attends a hearing at Oakland County Circuit Court (David Guralnick/Detroit News via AP)

A teenager accused of killing four fellow students and injuring several others at a Michigan high school is expected to plead guilty next week, authorities have said.

Ethan Crumbley had created images of violence during a classroom assignment last November, but was not sent home from Oxford High School in south-eastern Michigan.