The other leader is a former soldier from an elite army unit, Heriberto Lazcano.

BBC: Q&A: Mexico's drug-related violence

On the same bill, Mexico's Rafael Marquez retained his IBF bantamweight title with a third-round knockout of Heriberto Ruiz.

BBC: SPORT | Boxing | Morales proves too good

Heriberto Rodriguez said Wednesday afternoon that the boy was practicing in a league that attracts youths from different nearby towns.

CNN: STORY HIGHLIGHTS

The woman's son, and Erika's brother, Heriberto Andiola Arreola, was also detained in the raid, but was released Friday morning.

CNN: STORY HIGHLIGHTS

In the case of Heriberto Lazcano, responsible for some of the most gruesome crimes in Mexican history, it seems pretty clear that he died face-down in the mud in the city of Progreso, meaning Progress.

BBC: Heriberto Lazcano: The fall of a Mexican drug lord