Court docs say FBI raid at Va. home was part of investigation into possible ISIS supporter

The scene of the FBI raid in Sterling. (Photo: WJLA)

Court documents say the FBI raid at a Sterling, Va. home Friday was part of an investigation into a possible "radicalized" ISIS supporter.

The documents say that Sean Andrew Duncan, a Pittsburgh man who moved to Sterling, was arrested and is accused of destroying and hiding items like a thumb drive and memory chip to obstruct the FBI investigation of him.

According to FBI, it had a warrant to search Duncan's home. In February 2016, a family member told the FBI that Duncan had converted to Islam, was possibly radicalized and approved of westerners being beheaded. The court documents also say that an unnamed co-conspirator said in July that Duncan was interested in joining ISIS, attacking the United States and gave her instructions on making homemade bombs.

Read the full court documents here:

The FBI says it believes Duncan tried to escape and keep the thumb drive and memory chip away from the FBI when they had a warrant to search his home as part of their investigation of him for allegedly trying to provide material support for terrorists.

The FBI and other law enforcement spent hours raiding a condominium Friday in a Loudoun County neighborhood.

The raid took place at a home in the Chatham Green Condominiums in the 46900 block of Courtyard Square in Sterling.

FBI agents took boxes and other items from the home and left around 7:30 p.m. after neighbors told ABC7 they arrived in the afternoon.

Neighbors said that at least one man and one woman who they say dressed "Middle Eastern" moved into the home a few months ago. Neighbors said the man would wear a long black robe and had a long beard, while the woman wore a burqa.

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