Dad arrested for burning genitals of 1-month-old son (El Paso, Texas)

Sicko dad is identified as MIGUEL ESTEBAN LECHUGA PORTILLO. 

Notice that there is mention of a grandmother but not a mom. What happened to Mom? Is this a single and/or custodial father? 

http://www.elpasotimes.com/ci_21783577/ju-rez-police-father-burns-infant-sons-genitals?source=most_viewed

Juárez police: Father burns infant son's genitals 

Marisela Ortega Lozano / El Paso Times

Posted: 10/16/2012 02:46:20 PM MDT

Juárez police on Monday arrested a 19-year old man for allegedly burning his one-year-old son's genital area with a cigarette, officials said.

The assault allegedly took place inside a home at the intersection of Hacienda de la Espuela and Hacienda de la Noria in the Hacienda de las Torres neighborhood, which is in South Juárez.

The alleged victim's grandmother alerted police when the infant showed the cigarette burns to her, a police spokesman said in a press release.

Officers from Domestic Violence Special Unit arrested the boy's father, Miguel Esteban Lechuga Portillo, 19, on charges of injury to a child.

The child was turned over to social workers.

The police did not elaborate on the extent of the injuries sustained by the baby.