While I don't this case has anything to do with cartels, there is a "presence" of cartels along ALL border states, and spill-over crime, and it is disingenuous to say otherwise though can get why residents get defensive. An AZ Sheriff near Tuscon was raided by the Feds recently for working with and providing intel to the cartels.
The FBI in Tucson has 9 different squads, including counter-terrorism, and each
one is impacted in some way by the border.
Now there is also cartel influence in
many other US cities especially drug trafficking hubs. I was surprised how much there was in Tulsa, Oklahoma then found out that was a Grand Central hub for trafficking routes.
Again, I don't think there's any direct link in this case, though if you go the random small time bugling kidnapper theory, I suppose an "associate" may be involved of their own accord.