Marietta Allison, 61, had traveled from Austin to Houston for one reason: to support a close friend going through chemotherapy at MD Anderson Cancer Center. Friends say that’s exactly the kind of person she was — someone who dropped everything to be there when people needed her most. But Friday night, just moments after dropping her friend off and parking near an apartment in Houston’s Heights neighborhood, police say a masked gunman approached her. What happened next turned a simple visit into a devastating crime. Investigators say the suspect tried to rob Allison of her purse. When she resisted, he allegedly opened fire, striking her in the neck before fleeing in her vehicle. About 45 minutes later, police located the stolen car and began a pursuit that stretched nearly 10 miles before the vehicle crashed. But the night wasn’t over. Authorities say the suspect ran into an empty apartment, triggering a tense SWAT standoff that ended only after he finally surrendered. The suspect, 18-year-old Darius Dewayne Hall, now faces capital murder charges along with federal carjacking and firearms charges..

18-year-old now faces federal charges in Heights murder of Austin woman

Investigators say the murder happened during an attempted armed robbery as the victim visited a friend with cancer


(From left to right): Victim: Marietta Allison, 61. Suspect: Darius Dewayne Hall, 18. (Copyright 2026 by KPRC Click2Houston – All rights reserved.)

HOUSTON – An 18-year-old is now facing federal charges in the murder case of a 61-year-old Austin woman who was visiting Houston to support a friend undergoing cancer treatment.

Loved ones identified the victim as Marietta Allison.

Investigators say she was robbed and carjacked Friday night in Houston’s Heights neighborhood after dropping her friend off from chemotherapy treatment at MD Anderson Cancer Center.

18-year-old held without bond in Heights murder of Austin woman

A prosecutor told the court the suspect, Darius Dewayne Hall, confessed to evading police and admitted to being in the vehicle, but denied involvement in the shooting.

 

Hall appeared in court Saturday morning on a capital murder charge and was ordered held without bond. A judge set his next hearing for Feb. 23.

On Tuesday, U.S. Attorney Nicholas J. Ganjei announced that Hall faces federal carjacking and firearms charges.

Details of the attack

Houston police say Allison had just parked and was walking toward the apartment near West 20th Street and Lawrence Street when a masked and armed man approached her, attempting to steal her purse. The robber opened fire after she resisted.

Allison was shot in the neck.

Police say the suspect fled in Allison’s vehicle. About 45 minutes later, officers found the car and pursued it for roughly 10 miles before the vehicle crashed.

Investigators say the suspect then entered an empty apartment and a SWAT standoff followed, ending when the suspect surrendered.

Who was Allison?

Friends described Allison as the kind of person who put others first, traveling to Houston to be with the friend she considered a sister during chemotherapy.

“She cut her trip short from Istanbul to take care of her friend when she was diagnosed with cancer and that is who she was,” friend Karin Galindo said. “She was an amazing soul, a bright, bright light in this world, lived her life to the fullest in abundance, lived her life like every day was her last.”

Another friend recalled Allison’s warmth and generosity.

“Marietta was so rooted in love for every single person on this planet regardless of what walk of life you came from,” the friend said.

Hall’s criminal history

Prosecutors say Hall has a juvenile criminal history and was on probation for aggravated robbery, motor vehicle theft and aggravated assault.

He also faces charges of tampering with evidence and evading in the capital murder case.

Court records and prosecutors say Hall picked up an underage girl after stealing the car.

The girl told police Hall had two guns in the vehicle and used expletives when asked where he got the car, according to prosecutors.

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Gabrielle “Gabby” Esquivel was just 24 years old, a young mother whose entire life revolved around her 2-year-old son, Cypher, before everything suddenly turned into a nightmare that nobody close to her can fully process.  Police say Gabby was found dead Friday morning with injuries caused by a sharp object, and now a murder charge has been filed as investigators continue piecing together the horrifying final hours leading up to her death.  But the part destroying people emotionally is not only the crime itself — it is the heartbreaking reality that a little boy who loved dinosaurs, swimming, and toy trucks is now growing up without the mother who was always beside him… and loved ones say there is so much more behind this tragedy than the headlines are revealing.