Detroit

FBI Says Oxford School Killer Linked To New Terror Case In Macomb

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Published on June 18, 2026
FBI Says Oxford School Killer Linked To New Terror Case In MacombSource: Google Street View

Federal agents say the Oxford High School shooter has now been linked to a separate terrorism investigation in Macomb County, tying one of Michigan’s most infamous school attacks to a new probe outside the original 2021 case file.

According to The Detroit News, the FBI disclosed that evidence from the Oxford investigation is connected to an ongoing terrorism case in Macomb. The paper reports that the link surfaced in an FBI notice to local investigators, citing the bureau as the source for the new information.

Ethan Crumbley pleaded guilty to 24 counts, including terrorism causing death and four counts of first-degree murder, and was later sentenced to life without parole, according to ABC News. The 2021 Oxford High School shooting killed four students and wounded several others.

What the FBI Said

The Detroit News reports that the FBI has identified a connection between material from the Oxford case and a separate Macomb County terrorism probe. So far, officials have not said whether that link could lead to additional charges in Macomb.

Why It Matters Locally

The decision to charge Crumbley under Michigan’s terrorism statute drew national attention and helped reset how some prosecutors think about mass violence, experts told The Washington Post. Since the Oxford shooting, law enforcement agencies in southeastern Michigan have monitored a wave of copycat threats and other school-related incidents, making any hint of overlap between investigations a sensitive issue.

Legal Questions

Michigan’s penal code includes an anti terrorism chapter that criminalizes making terrorist threats and defines offenses such as “terrorism causing death,” with penalties that can include life imprisonment, per the Michigan Compiled Laws. To secure a terrorism conviction, prosecutors must show that an act was intended to intimidate or coerce a civilian population, as outlined in state law.

Macomb County and federal investigators say the terrorism probe is continuing, and they have released only limited public details so far. This story will be updated as agencies disclose more information.