From the presser - it looks as if LE was tracking Laurean in Mexico (from his contact with wifey perhaps). They may have been waiting for him to sneak back into the US - and were hoping they could arrest him here - rather than extradicting from Mexico.
Too bad - but a bird in the hand is worth two in the bush.
No other warrants are being issued - based on the investigation to date - however if facts change........
I hope wifey is wilting.
We can still execute his wife.