Overview
- Carrollton officers responding to a disturbance at 4:40 a.m. on March 18 found Karla Rangel with a severe neck wound inside an apartment on Metrocrest Drive.
- Police say they encountered Francisco Mendez‑Marin in the unit with blood on his clothes and a bloody pocket knife and took him into custody at the scene.
- An arrest affidavit cites body‑camera footage that captured Mendez‑Marin first saying he "didn't do anything bad" and later stating he was "obligated to do it" in Spanish.
- Investigators report finding a marriage license in the apartment showing the couple wed on February 26, placing the killing less than a month after their wedding.
- Mendez‑Marin is charged with murder and held at the Dallas County Jail on an immigration hold as investigators withhold a motive and do not name a third person who was present.