PONTIAC, Mich. (AP) — A prosecutor in Michigan filed involuntary manslaughter charges Friday against the parents of a boy who is accused of killing four students at Oxford High School, after saying earlier that their actions went "far beyond negligence," her office said.
Jennifer and James Crumbley were charged with four counts of involuntary manslaughter. Under Michigan law, an involuntary manslaughter charge can be pursued if prosecutors believe someone contributed to a situation where harm or death was high. If convicted, they could face up to 15 years in prison.
"The parents were the only individuals in the position to know the access to weapons," Oakland County prosecutor Karen McDonald said Thursday. The gun "seems to have been just freely available to that individual."
Ethan Crumbley, 15, has been charged as an adult with two dozen crimes, including murder, attempted murder and terrorism, for the shooting Tuesday at Oxford High School in Oakland County, roughly 30 miles north of Detroit.
Four students were killed and seven more people were injured. Three were in hospitals in stable condition.
The semi-automatic gun was purchased legally by Crumbley's father last week, according to investigators.
Parents in the U.S. are rarely charged in school shootings involving their children, even as most minors get guns from a parent or relative's house, according to experts.
Sheriff Mike Bouchard disclosed Wednesday that the parents met with school officials about their son's classroom behavior, just a few hours before the shooting.
Crumbley stayed in school Tuesday and later emerged from a bathroom with a gun, firing at students in the hallway, police said.
The superintendent for the district late Thursday posted a YouTube video where he said the teenager was called to the office before the shooting but "no discipline was warranted."
Tim Throne, leader of Oxford Community Schools, said the high school looks like a "war zone" and won't be ready for weeks. But he repeatedly credited students and staff for how they responded to the violence.
Photos: Student kills 4, wounds 7 at Michigan school
A well wisher kneels to pray at a memorial on the sign of Oxford High School in Oxford, Mich., after a 15-year-old sophomore opened fire at the school, killing several students and wounding multiple other people, including a teacher.