Investigators are still trying to identify the fourth person who died when an arsonist sealed two containers used as living quarters in Herradura and torched them early Friday.
Three persons, two brothers in their 20s and a 14-year-old girl, have been identified. The fourth person is now believed to be a companion of the girl, who also may be in her teens. All the bodies were badly burned.
Agents reported that a woman or girl was seen in the company of the dead 14 year old, identified by the last name of Delgado. The fourth body because of its size was first thought to be that of a child. But firemen later concluded that the stature was reduced by the fire.
The case is being handled as a multiple murder.