A federal judge has ordered Sheikhdoon Abdullahi Mohamud to remain in custody as his case moves forward.
The judge in the case finding probable cause to keep him in custody.
Prosecutors laying out a timeline of a nearly two-year investigation that found that Mohamud had originally planned to travel to Somalia to join ISIS but couldn't afford the trip shifting his focus to a a domestic attack.
Mohamud was arrested earlier this month after buying an AK-47 and 200 rounds of live ammunition from an undercover FBI agent.
The defense argued that Mohamud had no criminal history before the incident and was minor with no experience with guns when the investigation began.
He faces up to 15 years in prison if convicted.
