If two letters have been received from Houston, the last one had to be received yesterday (too early for mail today likely). It would probably take two days between Jacksonville and Texas. He must have mailed the last one on Sat or Sun maybe? He left on Friday. He probably took a flight on Friday/Saturday at the latest.
One of the problems with already establishing the death penalty for Laurean when charged, is that Mexico has no extradition for death penalty cases. Maybe authorities should reconsider the death penalty if they want him back.
I wonder if Mexico would cooperate with extradition for Cesar is the charge was being UA/desertion? Hmmmm.