On Thursday, James Jucht of Sioux Falls and David Terveen were charged with illegally using hunting dogs to tree and kill a mountain lion on February 1 in Pennington County. 

The female lion had two kittens, one of which later died.  The other is now in a zoo.

What kind of sick thrill does a human being get from stalking and chasing a terrified animal into a tree with dogs and then murdering that animal in cold blood?  After finding two kittens that belonged to the female lion just murdered, one of them was killed and the other in a zoo.

Why?  Explain the necessity of this situation?