(Updated at 1:15 p.m.) Arlington County Police are executing a search warrant on the house of David Black, the ex-husband of murder victim Bonnie Delgado Black.
Police arrived at the house near Pentagon City early this morning, according to ACPD spokesman Dustin Sternbeck. Black was at the house at the time but has since left, and is so far not in custody and not charged with a crime, Sternbeck said.