DEL VALLE, Texas -- A man has been charged after police say he killed his girlfriend and attempted to escape from his police interview.
Police first responded to the case on May 26 at 8:49 a.m. for a call of a deceased person on Bear Paw Trail in Del Valle. The woman reported that she discovered her 36-year-old mother dead inside of her residence. Police said in the 9-1-1 call she can be heard saying, "What did he do to you?"
Upon arrival, police discovered Rosa Hernandez dead in blood-stained clothing with suspicious injuries on her body. The woman reported her mother had a live-in boyfriend named Edmundo Cisneroz, 25, and they had been dating for about two years. According to police, she reported Cisneroz had been in the residence the evening before and her gray 2014 Chrysler 200 LX four-door was missing.
Court records state that Hernandez had left the residence the night before to visit her mother and three young children. Her daughter, the 9-1-1 caller, stated she had texted her mother to let her know that Cisneroz had been drinking and was coming and going from the residence while she was away, to which she replied she was on her way back home with the children around 11:45 p.m.
Police said Hernandez' 11-year-old son reported that Cisneroz was sitting outside when they returned, he went inside while his mother and Cisneroz stayed outside. A neighbor reported he heard the couple arguing between midnight and 1:30 a.m.
On May 26 at 2 p.m., the Lone Star Fugitive Task Force reported finding the missing vehicle on Robinwood Circle in Austin and set up surveillance, where they saw another man approach the vehicle with a young girl. Police said a vehicle occupied by Cisneroz followed the missing Chrysler and left the area. They were later observed driving up to an apartment complex on Masterson Pass, where Cisneroz was seen walking to the Chrysler. The people in question were then detained.
Police said the driver of the Chrysler reported he had met Cisneroz at a hookah lounge the night before and that Cisneroz admitted he had "punched" his girlfriend during an argument because he though that she was being unfaithful. He said Cisneroz was distraught and to the point of crying.
Court documents state the man also said Cisneroz asked to use his phone to tell others that he had been involved in a physical fight with his girlfriend, even though he owned his own. He said Cisneroz gave him the keys to the Chrysler and said they needed to retrieve his vehicle. They left for Robbinwood Circle, drove to pick up more beer. Once they stopped, the man said Cisneroz gave him a rag to wipe his fingerprints off the vehicle without providing a reason.
Police said the man also allowed Cisneroz into his apartment where the suspect changed shirts because his was ripped.
Upon interviewing Cisneroz, police said he admitted that he had been living with Hernandez for the past two years with her children. He said on the night of her death he had left the home to purchase beer, returned and got into an argument with her around 11:30 p.m. He reported that she was often argumentative and aggressive when she was drinking, and that one of the arguments they had was about the fact that she was supposed to blow into a probation-mandated machine at 10 p.m. but she had not done so.
Around 12:30 a.m., Cisneroz reported that they had moved to the bedroom where their disturbance became physical. He stated that she struck him twice and in return he pushed her onto the bed, putting his hands on her face and neck, after which she fainted. Police said they observed fresh cuts and abrasions on his arms, wrists and forehead, an indication he had been involved in a physical altercation.
Documents state that police then asked him if he knew what happed to Hernandez, and he said no, stating he had called hear earlier but she never answered. Police said he did not ask why he was there, what was being investigated, or if Hernandez was OK.
According to police, Cisneroz stated that after the disturbance he grabbed the keys to her daughter's Chrysler and left the house for a friend's apartment, left the car there and went to a nearby club around 1 a.m., where he befriend the man.
Police also said Cisneroz reported he had discovered Hernandez had been texting another man and that the man said he loved her.
Police later told Cisneroz that Hernandez had died, stating Cisneroz' body language and lack of emotion indicated that he already knew. After asking him if he thought he may have used too much force in the argument, police said Cisneroz stated he needed water and a cigarette.
Later, police said the detective left the interview room to brief a crime scene specialist when Cisneroz allegedly attempted to leave the room by standing on a chair and pulling himself above the ceiling tiles. Concrete cinder blocks fully enclosed the room and prevented his escape.
On May 27, autopsy results indicated that Hernandez died as the result of manual strangulation.
Cisneroz was charged with murder, a first-degree felony, and unauthorized use of a vehicle, a state jail felony. His total bond was set at $225,000.
According to police records, Hernandez was listed as the victim of a reported rape and strangulation by Cisneroz on December 25, 2017.
Anyone who may have more information on this case is asked to contact police at 512-477-3588.