An 18-year-old San Antonio man is behind bars after police say he grabbed his ex-girlfriend by the arms and tried to force her into his pickup truck outside her home, the culmination of 17 separate police calls involving the couple over the past year. Francisco Nuncio-Castaneda now faces felony charges of continuous family violence and stalking following his arrest this week.
According to News 4 San Antonio, Nuncio-Castaneda and his ex-girlfriend were together for about three years and share a child. Investigators say police were called to the woman's home 17 times for incidents involving the couple beginning August 1, 2025, with calls covering the period through this past Sunday, August 16, and including reports of assaults, threats and property damage. Nuncio-Castaneda was booked into the Bexar County Sheriff's Office jail under booking number B202633473, with bond set at $25,000 on the third-degree felony stalking charge, according to OpenArrest.
A Year of Escalating Incidents
Court records cited by the station show Nuncio-Castaneda repeatedly called his ex-girlfriend and sent her unwanted messages through Instagram, and that he threatened to come to her home, kill her and burn down the house. On July 31, police say he confronted her at her home, grabbed her by the hair and pulled her to the ground, then punched her repeatedly in the face and head and kicked her in the stomach and torso, according to investigators. Officers said the woman sustained scratches and injuries to her neck, chest and legs from that encounter.
Then, this past Sunday, Nuncio-Castaneda showed up unannounced at his ex-girlfriend's home in a maroon pickup truck, police say. He contacted her through Instagram and told her to come outside, then chased her toward her front door, grabbed her by the hair and other parts of her body, and told her to get into his truck, according to the arrest report. The woman's mother opened the front door after hearing her daughter scream, and Nuncio-Castaneda drove away after the mother confronted him, police say. Officers said the woman sustained a cut and bleeding lip, facial and torso redness, marks on both upper arms, and scratches across her back and arms.
License Plate Cameras Helped Track Suspect's Truck
Investigators used license plate cameras as part of the investigation, capturing a maroon Ford F-150 associated with Nuncio-Castaneda near the woman's home on multiple occasions, police say. Nuncio-Castaneda lived about 7.6 miles from the woman's home. The technology mirrors tools increasingly relied on by Texas law enforcement: automated license plate readers operated by Flock Safety feed vehicle plate numbers, colors and models into shared databases accessible across roughly 200 Texas police agency partnerships, though communities including Austin and Bandera have canceled their contracts over privacy concerns, according to The Texas Tribune. Flock Safety announced nationwide anti-abuse safeguards for its camera network this month, as reported by the Associated Press.
How Repeated Assaults Become a Single Felony
Bexar County court records show Nuncio-Castaneda previously faced a pre-file misdemeanor family violence case in County Court-at-Law 7 stemming from an August 17, 2025 offense date, per Bexar County court records. Under Texas Penal Code § 25.11, prosecutors can charge continuous violence against the family as a third-degree felony — punishable by two to ten years in prison and up to a $10,000 fine — when a defendant commits two or more bodily injury assaults against a dating partner within a 12-month period, without needing a prior conviction, according to Deandra Grant Law. Notably, a jury in such a trial does not need to unanimously agree on which specific two assault dates occurred, so long as all jurors agree that at least two acts happened within that window, per Doug Murphy Law.
The stalking charge carries its own weight. Under Texas Penal Code § 42.072, stalking is a third-degree felony carrying two to ten years in prison, and statutory updates enacted in 2025 added stalking to the list of offenses for which judges cannot grant court-ordered probation, according to Saputo Toufexis.
A Broader Pattern in Bexar County
The case lands amid a persistent public safety concern in the region. The Collaborative Commission on Domestic Violence reported 32 domestic violence homicides across Bexar County in 2024, a period during which local magistrates issued 2,267 emergency protection orders and 1,568 civil protective order applications were filed, according to Texas Public Radio. Statewide, Texas recorded more than 400 domestic violence fatalities in 2025, even as more than 20 victim protection and offender tracking bills failed to pass during that year's legislative session, per KENS 5.
Bexar County does offer a rapid-response option for victims caught in repeated 911 calls like the ones logged against Nuncio-Castaneda. The county's Safety Team Active Response program, relaunched in April 2024, connects domestic violence callers directly with case managers to conduct immediate lethality assessments and arrange emergency shelter within 24 hours, according to KSAT. The case is one of several recent Bexar County stalking and family violence arrests tied to ankle monitor removal that Hoodline has covered this year.
