WASHINGTON (AP) — Authorities say they have dismissed their case against a 43-year-old Maryland man accused of paying people to draw their blood and storing it in large quantities in an abandoned warehouse in Washington. The Washington Post reports that local prosecutors dismissed, without prejudice, the charge of practicing registered nursing without a license against Khoa Hoang Nguyen on Thursday. Nguyen was arrested in May after a Metropolitan police officer saw people congregating in front of a Washington apartment building.