Authorities have said Damon Joseph, 21, of Holland, Ohio, planned to kill worshipers inside a synagogue in Toledo with an assault rifle.

A federal grand jury indictment charges him with attempting to provide material support to ISIS, attempting to commit a hate crime and possessing firearms in furtherance of a crime of violence.

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CNN has reached out to an attorney for Joseph, but has not received a response.

Joseph, also known as Abdullah Ali Yusuf, was arrested after taking possession of two semi-automatic rifles in December, authorities said.

Source: Ohio man indicted on charges of plotting synagogue attack