Crews are working to clean up a park and a trail following Monday's house explosion in Bluemont. Arlington County provided an update about the incident late Thursday afternoon, noting that the exact cause of the explosion which followed a police standoff with a resident now presumed dead remains unknown. The blast destroyed both
James Yoo, 56, is presumed dead as a result of the explosion of the duplex at 844 N. Burlington Street, in the Bluemont neighborhood, Arlington County police confirmed during a news conference this afternoon.