Investigators examine the crime scene where Mexico journalist Juan Carlos Huerta was shot dead in Villahermosa, in Mexico's Tabasco state on May 15. (AFP/Carlos Perez)
Investigators examine the crime scene where Mexico journalist Juan Carlos Huerta was shot dead in Villahermosa, in Mexico's Tabasco state on May 15. (AFP/Carlos Perez)

Federal authorities in Mexico open investigation into journalist killed in Tabasco state