On Monday, October 17, Nicolas Jaimes-Hernandez was discharged from Baylor Scott & White Hillcrest and subsequently placed into the McLennan County Jail. He is suspected of killing his wife, two stepchildren, and two neighbors in McGregor.
According to documents obtained by KWTX, the suspect’s 8-year-old kid saw his father kill Monica Delgado Aviles and her two adolescent children on September 28. He later told police that Jaimes-Hernandez was still holding the silver revolver when he woke up the next morning.
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On Wednesday, October 12, Texas Ranger Jim Hatfield Jr., the chief investigator in the horrifying episodes that left five people dead in McGregor last month, secured arrest warrants charging Jaimes-Hernandez with two charges of capital murder. Mexican-born Jaimes-Hernandez, 35, was shot by McGregor police on September 29 and sustained injuries that, according to the authorities, rendered him disabled.
Jaimes-Hernandez is charged with capital murder in the shooting murders of Aviles, a 38-year-old man with whom he shared a South Monroe residence, and Aviles’ children, Miguel Avila, 15, and Natalie Avila, 14.
The second warrant accuses him of being involved in the shooting deaths of Lori Aviles and Natalie, her 20-year-old neighbor. If defendants are accused of killing multiple victims during one criminal act, they may be prosecuted with capital murder, a crime that carries a possible death penalty.
The three children of Jaimes-Hernandez, ages 8, 6, and 4, were at the house on the evening of September 28. Their father reportedly urged them to go to bed. The older boy told interviewers that he saw his father going around the home with a gun when the three kids were being questioned about the incident at the Advocacy Center for Crime Victims and Children.
According to the affidavit, the youngster claimed that “he witnessed the suspect holding a gun and shot his mother, sister, and brother.” The youngster “told the suspect to shoot (Miguel Avila) when he was in his bed in the front room, suspect to shoot Natalie Avila in her room, and suspect to shoot his mother in her room.” According to the affidavit, Jaimes-Hernandez directed his two younger children to enter a closet.
The affidavit claims that the defendant was still in possession of the gun when the witnesses awoke the following morning after being instructed to go to bed. As he checked each room while carrying a rifle, the child was described as the “stated suspect.” McGregor police officers responded to reports of gunfire in the 900 block of South Monroe the following morning.

When Jaimes-gray Hernandez’s pickup began to drive away, McGregor police Sgt. Jason Grochowski and other officers attempted to stop it. The affidavit claims that Jaimes-Hernandez came to a stop a block away and that Grochowski witnessed him fire twice through the passenger-side window at a man standing on a second-floor balcony.
According to the affidavit, “McGregor Police Officers shot the suspect and brought him into custody.” “The suspect was in possession of a 9mm handgun in a silvery-gray color and ammunition. The suspect was brought to a medical facility for treatment. Officers were told to go to 901 S. while Jaimes-Hernandez was receiving emergency medical care.
According to the complaint, Lori Aviles was found dead outside the house in Monroe, and Natalie Aviles was found inside. According to officials, Lori Aviles’ two kids, who are both students at McGregor High School, arrived at school immediately before the shooting started. At the hospital, Hatfield claimed he made an attempt to speak with Jaimes-Hernandez. The affidavit claims that the suspect “did not freely surrender his rights.”
Officials from Child Protective Services are trying to revoke Jaimes-parental Hernandez’s rights over his three kids. The CPS specialty court judge Nikki Mundkowsky sealed the case’s file, therefore the court documents are not accessible. On Thursday, KWTX requested that she open the sealed records. She declined, claiming that by sealing the court records, she is acting in the children’s best interests.
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