Experiencing a 'kill' is something many safari-goers hope to see. I never wanted to, but it's happened a couple of times and is fairly inevitable if you observe the big cats. My feelings are mixed, for one thing it's not as traumatic as I thought. Big cats kill to eat and feed their young. Far more efficient than a domestic cat which kills for fun, or plays with it's live prey for a while then discards it. We observed a lioness take down and kill an antelope in a matter of seconds, then fetch her two very young cubs to the carcass. They didn't quite know what to do with it.
On another occasion we saw a female cheetah chase down a young antelope for her 5 cubs - the cubs were left to dispatch the antelope - a vital life lesson for them. It doesn't give me a great deal of pleasure that this has been one of my most successful nature images.
Kenya Masai Mara