Mass-Shootings: Why the media uses "Crisis Actors" instead of actual witnesses?

I'm not ready to say that the shooting in Orlando FL. last Sunday was fake, but, I am ready to say the witnesses they interviewed were fake.

Why does the media use these actors instead of actual witnesses? . . . It's to keep the pre-planned narrative on script.  They don't want those actual witnesses to make a mistake and tell the truth.

However, the media makes mistakes too and interviews an actual witness.  Like the guy who claimed there was at least 4 shooters instead of the just one rogue gunman who was able to carry well over 300 rounds on his person and shoot over 100 people multiple times and keep people from exiting . . . Yeah, right?

I dont know exactly what happened Sunday, but I know what the media is telling us happened, didn't happen.  That's what happened.