Yes, I think this is a first test to see how far they can stretch things with the law and deport people without justification at all.
By extension it tests the current regimes ability and efficiency on how easily they can remove people.
When it is clear there are no legal roadblocks and delays the shipping containers and “train transports” will come out…
Also, I don’t think he’s dead, might have been beaten and barely fed.
But they most likely will have no knowledge about his status or direct whereabouts at all, might even be handed over to El Salvador’s prison anonymously.
Regimes in such prisons usually strip all identity anyway.
They’re most likely waiting out their time 'till Trump comes with a decree where he allows it, untill then they pay the fines and shrug it off.