When Isabel Celis went missing tunnels were found.
These tunnels were investigated at that time by both citizens and LE.
It was suspected not only were these child trafficking tunnels, but used to move drugs as well.
If the good guys were involved they have been monitoring the tunnels specific to Tucson.
https://www.azcentral.com/story/news/local/arizona/2017/04/03/isabel-celis-case-missing-tucson-girl-remains-found-scl/99986054/