The new allegations are the most damning so far. It looks like it was "Trump Employee 4" who has been talking to law enforcement, at least on the issues related to the security surveillance videos.
1. Trump had the DOJ subpoena for the surveillance videos in his hands
2. Trump talked to co-defendant Nauta
3. Nauta then rearranged his travel plans from going to Illinois with Trump to going to Mar-A-Lagara
4. Nauta contacted the Direct of IT at Mar-A-Lagara ("Trump Employee 4") and arranged to meet him
5. New co-defendant De Oliveira contacted several Mar-A-Lag people and told them to keep quiet about Nauta's visit
6. De Oliveira asked Trump Employee 4 how long surveillance video was stored and was told 45 days
7. De Oliveira told Trump Employee 4 that Trump wanted all the surveillance video destroyed
8. The next day De Oliveira walked through some Mar-A-Lag bushes and met Nauta on adjacent property and apparently debriefed him - it looks like Nauta was trying to stay hidden from other Mar-A-Lag employees and from cameras
The things that unclear here is why the surveillance video was able to be recovered. Did Trump Employee 4 refuse to destroy the evidence? Did he try to destroy the evidence, but the DOJ was able to forensically recover it anyway? IF it's the latter, I suppose Trump's best defense on these Counts is that he was going to destroy the surveillance video, but thought better of it and did not go through with the conspiracy.