I have seen video of the start of the incident.
First, an agitator comes up to the gate, and uses what appears to be a bolt cutter to open it. It is pretty blurry image.
Then a lead agitator leads the mob in through the gate.
A some point, the gate is damaged, but exactly when is unclear.
There is a clear sign saying "private street".
The protesters committed trespassing and fourth-degree assault by intimidation, One person pulled out some loaded pistol magazines and clicked them together and said that this couple were next......also protestors were yelling obscenities and threats of harm to both victims.