press photographer: human or animal?

I always failed to understand why reporters
are so fond of zooming cameras on dead bodies,
paying attention to details of murders, rapes.
Does audience really need all these details?
There are people who like to watch programmes
about crimes, accidents, do they try to persuade
themselves that their lives are better than such news,
or do they just like horrible news?
Isn't it enough to mention in news the fact
that someone was killed, shot or whatever?
In this case i am ready to believe just taking on trust
words of presenters. But most people not, i guess.
People don't trust each other and the simplest
evidence of the spoken fact stays a visual fact.

I can't understand why there are so many people,
who are against of sex scenes shown at a day-time,
while their children are sitting at TVs and watching
regular news show with bright pictures and videos,
illustrating killed, raped, shot people in detail.
I am not sure that violence is better than sex.