Tiger Attack

I forgot I wanted to post something about the tiger attack at The San Diego Zoo. It happened on Christmas Day and one person was killed and two others were mauled but survived. The tiger was shot by police and killed. This same tiger mauled a zoo keeper during a public feeding last year in the same week of December. I find this story very disturbing. This cat had been moved to this zoo in 2005 from a different zoo to hopefully breed with tigers at San Diego Zoo. What is going on at that zoo that the same animal is attacking and killing people two years in a row!? This animal had no record of attacks before moving to this zoo. The reports I have found on the incident are all a little different with the facts, so it is hard for me to sort it all out. One report said the cat was 4 years old, another said she was 5. One said the walls around her enclosure were 12 and half feet high and another said 18 feet high. It appears the cat scaled the wall of her enclosure somehow, so knowing the ACTUAL height of the wall is important. 12 and a half feet would be nothing to scale for a cat who is probably almost that height when standing on her hind legs. I find it hard to believe that the wall could be that low. The 18 foot report is probably more accurate. Still, why was this animal so unhappy that it repeatedly attacked people? Something at that zoo isn't right and I hope a full investigation uncovers it. I know this was a wild animal that was acting as a wild animal does, but this cat was born in captivity and raised by humans. For the most part this creates a bond between animal and human that would not exist in the wild, thereby decreasing the chances of an attack. Keeping the animal happy, entertained, well fed, and healthy also decreases the chances of an attack. Which factor was missing here? I don't think this animal was acting out of a "wild" instinct as some have stated. Yes, killing your prey is natural behavior for a tiger in the WILD not one raised by humans that eats out of a BOWL everyday. Stalking becomes a play behavior that doesn't result in killing unless that play is encouraged in that direction in order to release it back into the wild, or something is wrong with the cat or the cat's lifestyle. A PERSON is to blame for this tragedy that has resulted in the loss of two magnificent lives. This cat was too young to be senile, but there could have been a breeding problem--perhaps inbreeding--that caused a mental breakdown for this cat. I could speculate for days on how humans may have caused this to happen, but I just have a very deep feeling that the cat is not to blame. I am however, glad and sad at the same time, that the tiger was killed. She was obviously dangerous and if something was wrong with her or she had been mistreated she is better off in tiger heaven than alive in those circumstances. I always hate to hear of an animal having to be killed, but sometimes that is the only answer. What would they have done with her after she had killed someone and mauled 3 others if she had not been killed? This story REALLY bothers me.