If you don't want to see an animal get killed then don't watch this video...
I understand that the cougar likely needed to be destroyed. But what is with the horrible aim? And the animal was obviously alive after the first shot. I'm not sure if there is a protocol in place preventing them from simply "getting it done" ASAP. I'm not opposed to the destruction of the animal, I understand why, but it took far too long IMO. A well placed shot from a proper weapon should drop an animal instantly.