This is an article I found today. Since internet links can be so ephemeral, I will repost it further down the page.
I found this article thanks to the website of Tiger World, a big cat sanctuary and zoological park here in North Carolina (http://www.tigerworld.us/). I have not yet visited Tiger World, but I am looking forward to it. They are not an AZA accredited institution, but they are licensed by USDA (for what that is worth).
Anyway, I was rather shocked at the audacity of said poachers, and yet it is not surprising in the least. Even at the Tulsa Zoo in Oklahoma, we had to endure quite a bit of vandalism and minor theft. Indeed, sometimes smaller animals would be stolen. However, poaching of zoo property is taking criminality to a whole new level.