It really looks that way. They tried to sedate one of the tigers, but ended up killing it when it started running around. Which was only it's natural reaction and there wasn't enough time for the tranquilizer to kick in. As far as I've heard, they're still looking for a couple animals, but I think they've either recaptured or killed most of them. Things like this shouldn't happen, especially to animals that belong in the wild, not in cages.