If his contact is not the same person as "main people", it wouldn't make sense for "something" to have happened to all of them at the same time.
Maybe he had all the SSH keys and passwords on him and when he (allegedly) was formally indicted for running tornado cash (??) then everything started to fall apart from that point.
Of course, I do not know whether the whirlwind guy was also the tornado cash guy, but it can't be ruled out yet.