A Detroit man accused of amassing weapons and expressing support for the Islamic State group has pleaded guilty to a gun crime in a separate case.
Sebastian Gregerson pleaded guilty Tuesday to using a straw buyer to purchase a gun at a Chantilly, Virginia, gun show in 2014.
The plea comes weeks after Gregerson pleaded guilty to possessing unregistered destructive devices. He met an undercover FBI operative and traded a handgun for grenade parts.
FBI agents say they found CDs with the name of cleric Anwar Al-Awlaki at Gregerson's home. Al-Awlaki's internet sermons called for a war against the United States. He was killed in Yemen in 2011.
Gregerson will be sentenced in Detroit federal court in both cases on June 30.
