Jeep, as I said earlier, it repulses me as well. I want to toss when I see stuff like that. Watching wolves or big African cats take down their prey turns my stomach as well but I know better. As you indicated it is the fault of the ever successful over population of humans. But in the end someone has to do it and I would rather see some one take it to it's death in 5 minute as opposed to a couple of days which is how long it may take with big cats. The long and lingering deaths are natural even moose taken down by wolves may take days to die while being eaten. Same with whitetails and coyotes.
Yeah I know its still repluses me too.
BTW elephants are over populated in some areas but your are right they are endangered in many areas of the world. Unfortuneately there are areas that need culling and I am sure that is what happened there.

The controversy http://www.terradaily.com/reports/SAfrican_Government_Consults_Scientists_On_Elephan t_Culling.html