A bright-eyed 6-year-old boy was tragically killed in a callous hit-and-run on a popular stretch of San Diego beach. Hudson Stephen O’Loughlin was riding his bicycle in an alleyway on the 1500 block of Pacific Beach on Saturday afternoon when he was struck by a female driver who fled the scene, ABC 10 reported . The unidentified motorist, 32, stopped for several seconds before speeding away, police said. The boy was transported to the hospital, where he was pronounced dead. The driver was later