One zoo visitor was mauled to death and two others severely injured when a Siberian tiger escaped from its grotto at the San Francisco Zoo early Christmas evening and went on a bloody rampage in front of terrified zoo patrons.
The tiger - the same animal that chewed a keeper's arm during an attack last December - was shot to death outside a zoo cafe by four officers who managed to distract the animal as it mauled one of its victims.
The horrifying violence, which occurred just after the zoo's 5 p.m. closing time while dozens of patrons were still inside, began when the tiger somehow managed to gain its liberty from the grotto.
The animal, a 4-year-old tiger named Tatiana, did not leave the grotto through its only door, zookeepers said. The grotto is surrounded by a 15-foot-wide moat and a 20-foot-high wall.
"We don't know how it was able to get out," said Robert Jenkins, dire