The zoo should be sued.
Tigers had nearly escaped from that enclosure for at least 10 years.
It would appear many must accept some degree of liability in this indcident, not the least of which is no doubt those boys. Think of it this way: this habitat is said to have been built approx 1940 and evidently not once in all that time has there been a tiger get out over that wall. Why do you think that is?
All I'm saying is those who would engage in reckless activity / behavior that places them in harm's way must necessarily be assigned a certain portion of the liability for what happens to them. It's a principal of law that will be applied, if the evidence confirms what I believe transpired.
Out of curiosity, could you comment on why the Dahliwal brothers have been completely unwilling to cooperate with police. These brothers were convicted earlier this year of drunk and disorderly as well as resisting arrest. One or both is scheduled for a Court appearance to answer to charges again on January 15, 2008. Prior bad acts may mean nothing, but I do keep it in mind in assessing the type of persons they are. There's not much in this tragedy that isn't ugly, including the physical situation at the zoo.