Jury finds Michigan teenage killer’s mother guilty of manslaughter

Jennifer Crumbley is escorted out of court in Pontiac, Michigan at an earlier hearing (Carlos Osorio/AP)

A Michigan jury has convicted a teenage killer’s mother of involuntary manslaughter in a first-of-its-kind trial to determine whether she had any responsibility in the deaths of four students in a 2021 school shooting.

Prosecutors said Jennifer Crumbley was grossly negligent and could have foreseen the violence before her son opened fire at Oxford High School.