CHESAPEAKE, Va. -- A clinical psychologist who examined sniper suspect Lee Boyd Malvo this summer said Thursday that the teenager was unusually cheerful during the exam, which he classified as odd behavior. Malvo is accused of being the triggerman in the series of sniper shootings that left 10 people dead and terrorized the Washington area last fall. David Schretlen said he was immediately struck by Malvo's cheerfulness. He called it "out of step with the seriousness of the situation." Schretlin said Malvo also was eager to show how smart he is. Tests show the 18-year-old has an IQ of 98,...