Authorities say a breakup preceded the September attack that killed a father and left his 19-year-old daughter seriously wounded.

BAYTOWN, Texas — A 22-year-old man accused of shooting his former girlfriend and killing her father following the end of their relationship remains jailed without bond in Harris County, where records show he faces murder and aggravated-assault charges stemming from the Sept. 28 attack near Baytown.

Guillermo Mondragon Rosales is accused in the shooting that killed 53-year-old Leonel Pavon and seriously wounded Pavon’s 19-year-old daughter, Enelsi Pavon. Harris County Sheriff Ed Gonzalez said investigators were treating the case as intimate partner violence and believed anger over Rosales’ ended relationship with Enelsi Pavon was behind the attack. Rosales was initially detained in the Waco area after fleeing east Harris County, authorities said. A current Harris County Sheriff’s Office jail record shows he was booked into county custody Oct. 8. The record lists a murder case and an aggravated assault-family member case, with bond denied on both. His next listed court date is Dec. 1.

The shooting followed a breakup that relatives said had happened roughly two months earlier. Family members told Houston-area news outlets that Rosales had lived with Enelsi Pavon and her family for about a year before the relationship ended. That history placed the man now accused of attacking the family inside the same household for an extended period before the separation. Luz Marina Aviles, Leonel Pavon’s wife and Enelsi Pavon’s mother, described Rosales to reporters as deeply fixated on her daughter and alleged that there had been domestic violence before the shooting. Those statements are family allegations; investigators have publicly identified the breakup as the apparent motive but have not released a complete account of the relationship or every event that preceded the gunfire.

Aviles told KHOU that Rosales was “obsessed” and believed he could not find another girlfriend. Her description became a central part of the family’s account of the violence, but authorities have been more limited in describing what they believe happened before the attack. Gonzalez said the apparent motive was Rosales’ anger over the end of the dating relationship. The sheriff’s office has not publicly released a full investigative file explaining what communications, encounters or other evidence led detectives to that conclusion. No publicly available report reviewed for this article establishes that Rosales had been convicted of a previous domestic violence offense, so the family’s claims about earlier abuse remain attributed to relatives rather than stated as a proven criminal history.

The attack unfolded shortly before 6 a.m. Sept. 28 in the 5400 block of North Redell Road in the Baytown area of east Harris County. Deputies responding to the home found Leonel and Enelsi Pavon suffering from gunshot wounds. Leonel Pavon was pronounced dead at the scene. His daughter was flown by medical helicopter to a hospital in critical condition and underwent emergency treatment. The sheriff’s office said the case immediately became a homicide investigation. Early reporting from the scene also said another relative had been asleep inside the home and was interviewed by investigators, who did not believe that person was involved in the shooting.

Details provided by the family and neighbors helped fill in the hours around the attack. Aviles told FOX 26 that Leonel Pavon had taken her to work at about 5 a.m., leaving him and other family members at the residence. A neighbor’s surveillance system recorded the sound of three gunshots around 5:45 a.m., the station reported. Witnesses also said a vehicle associated with Enelsi Pavon’s former boyfriend had been seen in the area on recent nights. Another neighbor told reporters she heard gunfire and then saw or heard a truck speeding away. Those witness accounts were reported while detectives were still collecting evidence and should not be read as a substitute for the state’s eventual courtroom evidence.

The suspect was gone by the time deputies began working the scene. Investigators identified Rosales and began searching beyond Harris County. Gonzalez said information developed through automated license plate readers played a role in finding him. The Texas Department of Public Safety and the Gulf Coast Violent Offenders Task Force assisted the sheriff’s office, and Rosales was located later that day in the Waco area, roughly 200 miles northwest of Baytown. He was taken into custody and initially held in the McLennan County Jail while Harris County authorities prepared to bring him back to face the cases arising from the shooting.

The charges developed as investigators established the identities of the victims and continued processing the scene. Rosales was first charged in connection with the shooting of Enelsi Pavon. By Sept. 29, Gonzalez announced that Rosales also faced a murder charge in Leonel Pavon’s death. Contemporary reports described the charge involving Enelsi Pavon as aggravated assault with a deadly weapon. The Harris County jail record available Nov. 10 lists the pending charge in abbreviated form as aggravated assault-family member, along with murder. The same record shows that bond has been denied in each case. Charges are accusations, and Rosales is presumed innocent unless and until he is proven guilty in court.

For the Pavon family, the legal case began while they were dealing with two crises at once: Leonel Pavon’s death and uncertainty over his daughter’s survival and recovery. In the first days after the shooting, relatives mourned the 53-year-old father while waiting for updates from the hospital. Enelsi Pavon initially was described as being in critical condition. Gonzalez said Sept. 29 that she remained hospitalized in serious condition. The latest reliable public reporting located for this article does not provide a newer medical update, and it would be inaccurate to assume either the extent of her recovery or whether she continues to receive hospital care.

The case also illustrates why investigators did not treat Leonel Pavon’s death as an isolated homicide. The sheriff explicitly described the shooting as an intimate partner violence case because the alleged target and accused gunman had been in a dating relationship and because investigators believed the end of that relationship was connected to the attack. Leonel Pavon, although not part of the former couple, became the person killed. Gonzalez said after the arrest that such violence can affect entire families, pointing to the death of a father and the serious injuries suffered by his daughter. That framing is consistent with what investigators say they believe happened, while the precise sequence inside or around the residence remains a matter for the criminal case.

The family’s description of Rosales’ behavior before the shooting gives prosecutors and investigators a possible line of context, but it does not by itself establish his state of mind at the moment of the attack. Public reporting has not disclosed whether detectives recovered a weapon, what forensic testing has been completed, whether Rosales made a statement after his arrest, or whether investigators obtained messages between Rosales and Enelsi Pavon. Authorities also have not publicly detailed what, if any, contact occurred between the former couple immediately before Sept. 28. Those gaps matter because motive, identity and intent ultimately must be supported by admissible evidence if the cases proceed to trial.

The distance between the shooting scene and the arrest added another element to the investigation. Rosales was not captured in the immediate Baytown area; authorities said they followed information that led them toward Waco. License plate reader systems can alert investigators when a vehicle connected with a wanted person is detected by participating cameras, but officials have not released a minute-by-minute account of how Rosales was tracked. The sheriff credited cooperation among his agency, state authorities and a violent-offender task force with allowing officers to locate and detain the suspect on the same day as the shooting.

More than a month later, the case has moved from the initial search and transfer stage into Harris County’s criminal court system. The sheriff’s online jail record, current Nov. 10, identifies Rosales as being in custody following his Oct. 8 booking and lists both pending cases in the 177th District Court with a Dec. 1 court date. The public record does not establish how the cases will ultimately be resolved, and the available sources do not provide a final medical outcome for Enelsi Pavon. What is established is that Leonel Pavon died, his daughter survived the initial attack with serious injuries, and her former boyfriend now faces two serious felony accusations as the prosecution moves forward.

Author note: Last updated Nov. 10, 2026.