A white tiger attacked and killed a 20-year-old man who apparently fell into its enclosure at the Delhi zoo on Tuesday. Witnesses say the man, Maqsood, fell 18 feet into a dry moat in the tiger enclosure at around 1 pm. Moments later, the fully-grown tiger could be seen dragging his body by the neck. An image taken by witnesses shows him cowering before the animal, his hands folded.