A second suspect has been charged in connection with the slaying of a Northwest Washington couple in their homes last weekend. Angela Hernandez, 20, of Ingraham Street NW, was arrested late Wednesday and ... ordered held without bail. Hernandez has admitted tying victims Michael Spevak, a psychiatrist, and his wife, Virginia, with telephone cords while her two companions robbed their home. ... The charging document states that Hernandez was a friend of a foster daughter of the Spevaks, and at one time spent a night in their home... She pointed out the house to two male friends, and one of...