A 17-year-old boy became the fourth student to die following a shooting at a Michigan high school on Nov. 30, officials said.
Oakland County Sheriff’s Office said that Justin Shilling died at about 10:45 a.m. on Dec. 1 as a result of injuries sustained from the shooting at Oxford High School in suburban Detroit.
The sheriff’s office identified three other students who died — Tate Myre, 16, Hana St. Juliana, 14, and Madisyn Baldwin, 17.
Seven other people, including a teacher, were injured, four of whom remained in the hospital, Oakland County Sheriff Michael Bouchard said at a press conference.
Oakland County Prosecutor Karen McDonald announced that she has charged 15-year-old suspected gunman Ethan Crumbley as an adult.
Crumbley faces one count of terrorism causing death, four counts of first-degree murder, seven counts of assault with intent to murder, and 12 counts of possession of a firearm in the commission of a felony.
Additional charges are possible pending the results of the full investigation, McDonald said.
McDonald also said that she is confident prosecutors can prove that the shooting was premeditated “well before the incident.”
Prosecutors are considering charges against both of Crumbley’s parents, McDonald said.
According to the sheriff’s office, Crumbley allegedly brought his father’s semiautomatic handgun — a 9mm Sig Saur pistol, to school — came out of a bathroom, and opened fire.
Crumbley’s father purchased the gun four days prior to the incident, the sheriff’s office said.
Officials are looking into how Crumbley’s family stored its guns and how much access the teen had to them, according to a source cited by ABC News.
The source also said that the suspect had apparently used the gun prior to the school shooting.
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