The Jade video could have been delivered anonymously to Stephen Burke.
The question of whether Vinny opened the safe in EP9 doesn't arise because he didn't open it. But we learn that Vinny knew the old safe combination, but not the new one. Because in EP4 Vinny was not in the DIK Mansion, he is allied with someone. Nick is too obvious and he says himself that this place got better when Vinny left.
But EP9 gives us some clues. So we learn so the Dorm Girls are usually the first at the DIK parties because they don't want to miss anything. In EP4, dorm girls are also there. It's not interesting which Dorm Girls we see, but rather the Dorm Girls we don't see. For example, the Vixen and Tara. They have a connection to Oscar, as you can see during the Dorm Party of EP8 and the Halloween Party.
The MC can throw Oscar out of the Mansion during the 2 Free Roam event of EP9. He is dressed as a bank robber. Banks have safes. But actually it doesn't matter if the MC throws Oscar out of the Mansion because the safe combination has been changed. The only strange thing is for Vinny to show up in the following Free Roam event. Vinny is also no longer a DIK, which was confirmed by Quinn. We likewise know so that Jamie and Leon partied a lot with the DIKs before they became DIKs.
What if Oscar is the ally of Vinny? Just because we didn't see Oscar in EP4 doesn't mean so he couldn't have been at the DIK Mansion, especially since Dorm Girls were also present during the party, or else, he used one or more Dorm Girls to drop off the Cathy Cluck. Vinny may have known all the codes because Rusty was very sloppy with them.
I think so Vinny wants to hurt the DIKs because he was tricked by Quinn and Tommy in the past. This is implied in a conversation between Quinn and Tommy. To hurt the HOTs, the rumor was started. But his hatred for some DIKs may be greater. Rusty will have believed Tommy more than Vinny at that time, because Tommy is still a DIK. That is why the Cathy Cluck will have been Vinny's attempt to cut off the head of the DIK snake. Rusty. Without Rusty, without the help of the MC, the DIK would have perished. So it can also be assumed that Vinny was involved in the destruction of the DIK Mansion by getting the Alphas to do it. Maybe he offered cheaper birth control pills to the Alpha. But that didn't work either thanks to the MC. Vinny must be starting to get hate on the MC.
Oscar couldn't open the safe because the safe combination was changed and/or because he was kicked out of the DIK Mansion by the MC beforehand. This was in Free Roam Event 2. What if this forced Vinny to get into the DIK Mansion himself. I noticed so Oscar has a black trash bag that is good for hiding things in. Vinny also has a backpack with him. Therefore one can suppose, so that something incriminating should be left behind. Only it doesn't make sense to obviously put it in the safe because Rusty, Tommy and maybe the MC would see it immediately.
But we do learn something from Rusty in EP9. So he keeps his car keys in the safe. You take the car keys, deposit something in the car and put the car keys back in the safe. It has to be deposited in the car because anyone can deposit something on a car. Then when Rusty is driving his car, the police are called and Rusty is arrested. Head of the DIK snake is cut off. But Vinny can't get into the safe either. So plan B for Vinny, who has seen the detective game in Rusty's room 100%. He switches the weapons. If we as players see the 4 pieces of evidence and follow them, Vinny will be able to do the same. Maybe it was the gun that Vinny wanted to put in Rusty's car. Why? There was news on a TV in the nursing home. It said that so someone got shot.
Now the possible murder weapon is in the DIKs' house. All that remains is to call the police. But Vinny makes mistakes. He leaves his mask in the room of the MC. The MC himself can write to his father that he is dressing up as a Spartan and even who doesn't write that to Neil, there are several photos of the MC. That's why this is a hint from DPC so that Elena writes that if people don't let themselves be photographed, they will be shot. Furthermore, there is a selfie of Becky showing Vinny. Tommy himself says to the MC that Vinny will never be in DIK Mansion again. So the biggest mistake of Vinny was so that he exchanged the guns in DIK Mansion.
This is a mix of theory and speculation.