Iowa teens killed Spanish teacher over "poor grade," prosecutor says

A witness provided photos of a Snapchat conversation "that identify Goodale's admissions that he acted in concert with another person to bring about Graber's death," the documents say.

source https://www.cbsnews.com/news/nohema-graber-murder-willard-miller-jeremy-goodale-killed-spanish-teacher-over-bad-grade-iowa-prosecutor-says/