I read one of the messages that said something to the effect of "we will continue this conversation over more secure channels" so yes, they used coded language in gmail, but I'm sure the spoke more plainly over encrypted comms

When you’re above the law…

I found a document saying he had a cell mate. The cell mate wouldn’t talk because of ms13 fears? There’s a note saying his lawyer told him not to say anymore. So much sketchy and misreported stuff if you dig a bit.

they're shockingly plaintext maximalists