[sockmonkey]

From the article:
The spokesman offered no basis for that assurance, however, and said Mexican officials need Young-Hartley to meet with them and file a complaint in the city of Miguel Aleman.
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Oh, yeah, I’m sure she’ll be right there. Are these people eating lead paint chips?

[La Lydia]

That is how the law works in Mexico, although Calderon is trying to change it. If you are the victim of a crime, or a witness, in a case like this where there is no body, you have to go to the Mexican equivalent of a police station and file a formal denuncia in order for the criminal process to begin.