Vincent gives a nod in return to that, more than content with Robert taking stuff one thing at a time.
 

"Of course. I really don't think you owe me anything, though." Say what he would, but there was no debt at all here in Vincent's mind. As for the first thing they saw…

"To start with, the format of your projection was… something of a stage that would change it's scene when a lever was pulled, with detailed set pieces but entirely plain mannequins on it to represent people, posed in different positions. Everything was very neon and stylized. Each mannequin also had a… 'play' button, which when pressed gave a single spoken line of audio in most cases. …Of note, neither your Muse or Sheriff were on the stage, just positioned next to it, so I don't think they could actually see what was on stage, but they could… hear everything."
That was all set up information, though. What would come next is… well. What the first scene actually was. Vincent takes a slow breath in and out before continuing on with that as well. It had only been a few hours, but he had to make sure he remembered this correctly, because giving false information here would be unfortunate.
 

"…The first scene it showed, seemed like it was in a home recording studio. There were three mannequins. One held a gun that had just fired, and one was… a bystander, reaching towards the third mannequin, which was the one being shot through the face." Vincent successfully does not cringe when saying that externally, but rest assured he is internally doing so.
 
Someone else can take over to explain what was played in the Audio, though.