Nassau County Executive Edward Mangano discusses the shooting death of Police Officer Arthur Lopez, in picture at right, Tuesday, Oct. 23, 2012, as Police Commissioner Thomas Dale stands behind at police headquarters in Mineola, N.Y. A motorist fleeing a possible hit-and-run traffic accident fatally shot Lopez in broad daylight Tuesday near the Belmont racetrack and then apparently killed another driver not far away during a carjacking, authorities said. (AP Photo/Frank Eltman)
