What is the saying? "Chance favors the prepared mind."
The predators chose their victim very unwisely in this case. They thought they picked out a sheep from the flock. Instead, they got the "teeth" of a vicious guard dog.
It is always heartwarming to hear stories about citizens who refuse to lay down for monsters like this. Mr. Jackson is a hero even though I doubt he would except the title if you gave it to him. He protected his wife and safeguarded his own life so that his children may continue to enjoy their father's company.
Outstanding video. Thanks for posting it.