Here's a sad story. Hundred of baby mink and their nursing moms, and two sheepdogs, were found brutally murdered this past week on a Pennsylvania farm; thousands more had been "released." Click here for the story. Ironically, what's just as sad is that these mink are bred for their fur, and would have been slaughtered eventually. While I don't have any sympathy for the farm owners, I do have sympathy for the animals that were violently killed.
The FBI's Joint Terrorism Task Force is investigating, but, of course, not for any altruistic reasons about animals rights or welfare.