Media Explortaion

In class on Thursday Ben Reiss talked about how the media exploration made people more interested in what was going on by just touching on something that is going to anger the public. He talked about how at the time he was writing there was the OJ Simpson trail going on and how the public was so into every aspect of this trail just because it was something that the media followed intently and ensuring that they kept certain things to just get the public angry. This is still the same thing the media does today, such as with the Casey Anthony trail and the Manti Teo's imaginary girlfriend. Why is it that the media feels the need to give these people so much exposure when they either broke laws or made things up?