For the record, this looks like it was a livestock shipment. There's a huge difference between that and pets.
All shippers of livestock, even puppies, know there's going to be dead-loss, whether it's on the plane or in a warehouse. More often than not, it turns out they're in poor health leaving the puppy farm.
But McPaper won't publish that. They just want you to think that AA killed little Marley or Lassie.