SOUTHFIELD, Mich.—A teenager charged with killing four students at a Michigan high school will pursue an insanity defense, his lawyers said in a notice filed Thursday as he, his parents, and school officials faced a new lawsuit over the attack at Oxford High School.
The notice, listed in a summary of case filings, should lead to mental health exams of 15-year-old Ethan Crumbley, who is charged as an adult with murder and other crimes for the shooting, which also wounded six other students and a teacher. Experts will consider whether the teen understood the wrongfulness of his conduct on the day of the shooting.
