This is just how I have noticed that most news sources report on big disasters like the tornado in Oklahoma. This is mostly specific to TV and Internet sources.
1) Breaking the story- the reporter quickly explains the circumstances and any known details, there is often a lot of confusion and the details are not correct.
2) Continuing coverage- getting more details from people who are actually there, death/injury toll begins to more accurately reflect the truth. Especially on TV there is a lot of repetition to make sure new viewers know what is going on and to fill air time. This is also when #prayfor____ begins circulating around social medias and spreads more, often incorrect, details.
3) Sending the reporters- news sources end up sending someone from their syndicate to cover the story. This is usually around early night/afternoon before shows like nightly news.
4) National news- the show is basically all this event they show tons of different angles and reactions from the victims. By now basically everyone knows about it. The full destruction is understood and aid begins to roll in.
5) New developments, Aid, Conspiracy's, Manhunts, etc.- Basically any thing that needs to be resolved is during the next few weeks.
6) Going back- news sources go back to look at how the community has coped a few months later.
This is just the general essence of what I have seen happening in the news when something very dramatic happens.