An ex-Marine from Virginia is expected to enter a guilty plea related to charges that he fired shots at the Pentagon, the Marine Corps museum in Quantico and other military-related targets.

Court records show a plea-agreement hearing has been scheduled Thursday morning for 24-year-old Yonathan Melaku (meh-LAH-koo) of Alexandria. Prosecutors charged Melaku last year.

They say they have evidence linking him to a series of overnight shootings in October and November 2010 at a number of military buildings in northern Virginia. No one was injured.

Melaku was arrested in June when he was spotted after dark in Arlington National Cemetery with a backpack containing potential explosives material and notations referring to jihad and Osama bin Laden. That arrest set off a security scare in and around the Pentagon.