Or maybe this secret tunnel was being dug 24/7. Maybe it was being dug by the young revolutionaries after the secrets of their elders. Or maybe it's the other way around. Whose side is the cement truck on? Who called it? Whose side is the NYPD on? Who called them? Who did they arrest? Who was opening up the panels, why? Who was digging, why? Who was rioting, why?
https://boards.4chan.org/pol/thread/454535584
Shit looking sketchy though. Check this:
https://www.theyeshivaworld.com/news/general/2252119/shock-in-lubavitch-violent-meshichist-bochrim-literally-destroy-770-brawl-with-nypd-making-arrests-video-roundup.html
> NOTE FROM YWN: Around two hours later the NYPD entered the Bais Medrash and made a few arrests. The crowd of meshichist bochrim responded to the NYPD with violence befitting animals in Gaza (see videos below). It’s high time that the respectable greater Lubavitcher community rise up and seize control of this Makom Kadosh. The overwhelming majority of the Chabad community (99%)are sickened by what has transpired at 770 over the years,and have remained silent far too long. Perhaps this is a wake up call to some serious action.