Regarding reporting, it is my understanding that the safari industry, understandably, does as much as it can not to draw attention to the (very few) tragedies that do occur. No-one is going to say: Oh by the way, someone was killed by a hippo in that the camp I just booked you into, so probably wise to keep an eye out!

A very well-known safari outfit in South and East Africa told me they were very sensitive to the real and imaginary fears of potential clients. They used to have a mythical "Mrs Schwartz from Philadelphia" as their example of a poorly-informed and deeply apprehensive client. Their acid test for marketing material, news stories etc. was "How would Mrs Schwartz of Philadelphia react?" Shortly after one of their camps opened, a guest was killed by a lion while walking from her bungalow to the main building. They immediately arranged a system of guards to accompany guests and fenced in the camp as soon as was humanly possible. Which was a great pity - it was a freak accident and the camp was aesthetically and experientially less satisfying afterwards. But they had to combat any possibility of that event deterring the skittish Mrs Schwartz's of the world.

Everyone in the field is doing their utmost to ensure the safety of their guests. But as johan rebel says, this is not a risk-free environment and freak accidents can and do occur. But idiotic behaviour by foolish tourists is lamentably common and probably accounts for more deaths than any others. (Just one example: a tourist was killed in the lion park in Johannesburg because he got out of his vehicle to have his photo taken with a lion in the background. )

My ramblings above are also a convoluted way to say that I am not sure that even the most detailed account of what happened in that particular incident is going to be much use to you, susiesan. Even if you were going to the exact place in all of the vast Serengeti where the accident happened, it was almost certainly a freak, unrepeatable accident. (And even though lightning isn't supposed to strike in the same place twice, the rangers there will be so spooked they probably won't even let you go to the toilet now without a guard!).

Your best chance of avoiding one of those is to listen to your guides, whose interests in keeping you unharmed are very much aligned with yours, and not to wander off alone unless you are confident of your safety.