Recent developments have come up with the Vanessa Guillen murder case as a new report from the Texas Department of Public Safety stated the motive for the soldier's killing.

Crime Online noted that the Texas Department of Public Safety's report revealed that Guillen was killed by Spc. Aaron Robinson as she saw Robinson's cellphone lock screen, which was a photo of Cecily Aguilar.

Robinson told Guillen that he was worried about getting in trouble for violating the Army's fraternization rules since Aguilar was still married to another soldier.

The report added that it was then that Robinson hit Guillen in the head with a hammer.

Robinson committed suicide on July 1, 2020, as police were closing in on him as a suspect. Aguilar became the only person to be charged in the case after she helped dismember Guillen's body.

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Vanessa Guillen Murder Case

Investigators tried to apprehend Robinson after finding Guillen's remains, which were buried along the Leon River. It was about 30 miles from Fort Hood.

In April 2020, Robinson killed Guillen with a hammer in an armory on post. He then asked for his girlfriend's help to dispose of the remains.

Texas Ranger Travis Dendy wrote in the investigation report that he pointed out the smell in the room that "U.S. Marshall task force officer John Ray" and himself were saturated in.

Dendy added that he then explained it was that of human remains, according to a New York Post report.

Dendy said that he asked Aguilar to start the story over and tell the truth.

Robinson was said to take Aguilar to the Leon River, where he showed her Guillen's body in a massive black tote bag.

Aguilar said Robison then put a gun to her head and threatened her so she would help Robinson to dispose of the murdered soldier's body and the incriminating evidence.

Aguilar claimed that Robinson would go into moods in which "he would not be his normal self and have a tic."

With the release of the Texas DPS report, Aguilar is asking a court to toss her confession, arguing it was inadmissible as authorities did not give her an opportunity to appear before a judge quickly enough when she was charged.

Guillen's sister Mayra said that Aguilar will "try everything in her power" to walk out of the charges, adding that they are being denied of the truth "at this very moment."

Vanessa Guillen

The killing of Guillen has raised questions regarding sexual assault within the military, as reported by Independent.

U.S. President Joe Biden passed an executive order on January 26, 2022, to establish sexual harassment as an offense under the Uniform Code of Military Justice.

The measure was called the "I Am Vanessa Guillen Act" in the 2022 National Defense Authorization Act.

Guillen's sister, Mayra, said that the slain soldier opened up to her mom and that there was somebody sexually harassing her at the Fort Hood base.

Guillen was found on June 30, 2020, with Aguilar indicted on 11 counts relating to Vanessa's death.

READ MORE: Foul Play Suspected as Another Missing Fort Drum Soldier Found Dead

This article is owned by Latin Post.

Written by: Mary Webber

WATCH: New document reveals motive behind Vanessa Guillen's murder - from KHOU 11