This is the tenth officer-involved shooting in 2026. The details presented here are based on the preliminary investigation and may change as more information is confirmed.
On Friday, August 7, 2026, at approximately 6:50 a.m., Dallas Police received a 911 call regarding a family violence disturbance at an apartment complex in the 8500 block of Park Lane. The caller reported that 37-year-old Isidoro Melo-Munoz was armed with a knife and assaulting a woman with whom he had been in a dating relationship. Dallas Police Sergeant John Arnold was the first officer to arrive at the location. As Sergeant Arnold entered the apartment complex, a witness flagged him down and directed him toward the disturbance. As Sergeant Arnold approached, he observed Melo-Munoz run toward the victim and begin assaulting her. Sergeant Arnold gave Melo-Munoz repeated verbal commands. Melo-Munoz did not comply and stabbed the victim multiple times. Melo-Munoz then ran from the area while still armed with a knife. Sergeant Arnold fired one round toward the suspect as he fled. Melo-Munoz continued running and escaped from the immediate area. A knife was later recovered along the path he took while fleeing. Dallas Fire-Rescue transported the victim to a local hospital where she underwent surgery and was later listed in stable condition.
Investigators determined that prior to officers arriving, Melo-Munoz confronted the victim as she was preparing to leave for work. Witnesses reported that Melo-Munoz prevented her from leaving and moved her to different areas of the apartment complex while armed with multiple knives.
Investigators recovered three knives from the scene. Following the officer-involved shooting, Dallas Police deployed additional resources, including the Drone Unit and Fugitive Unit, to help locate Melo-Munoz. Detectives obtained an arrest warrant for Melo-Munoz for Aggravated Assault – Family Violence with a Deadly Weapon. On Saturday, August 8, 2026, Melo-Munoz entered a convenience store in the 6700 block of Abrams Road, where he was located and taken into custody. Melo-Munoz was booked into the Dallas County Jail on the Aggravated Assault – Family Violence with a Deadly Weapon warrant. He was also booked on a warrant for Burglary with Intent to Commit Assault stemming from a separate incident that occurred on August 5, 2026, involving the same victim.
To provide context for the events surrounding this incident, the following video will be presented in chronological order using body-worn camera footage and surveillance footage.
This officer-involved shooting is being investigated by the Dallas Police Department’s Special Investigations Unit. The Dallas County District Attorney’s Office was notified and responded to the scene and will conduct an independent investigation. The Office of Community Police Oversight also responded to the scene. This remains an active and ongoing investigation. Information may change as additional evidence, forensic analysis, and video review are completed.
The Dallas Police Department remains committed to transparency, accountability, and maintaining the trust of our community. Click here to view the critical incident video: https://youtu.be/8t4E6oNj7K8