Daisy Zuniga Sentenced for Fentanyl Death at Dallas County Jail

Daisy Zuniga, a 27-year-old Texas woman, was sentenced to roughly 18 years and 9 months in prison after pleading guilty to smuggling fentanyl-laced drugs into the Dallas County Jail, where she shared them with other inmates and caused the overdose death of 21-year-old Quinetta Ariana Brinkley in July 2025.¹

The Sentence

Zuniga pleaded guilty to delivery of a controlled substance causing death, delivery of a controlled substance causing serious bodily injury, and a probation revocation on prior drug possession convictions. Judge Chika Anyiam presided.²

The sentence stacked as follows:

10 years for delivery of a controlled substance causing the death of Quinetta Brinkley.
5 years for delivery of a controlled substance causing serious bodily injury to another inmate.
3 years and 9 months for the probation revocation.

The combined term totals approximately 18 years and 9 months.¹ The Dallas County District Attorney’s Office described the sentence as 18 years in its newsletter.²

What She Did

Zuniga was arrested on July 11, 2025, on a trespassing charge at an apartment complex on South Cockrell Hill Road in Dallas. Officers found more than an ounce of cocaine in her backpack, which she admitted was hers, and added a possession charge. She was booked into the Lew Sterrett North Tower Justice Center.³

Before booking, Zuniga concealed a bag of drugs inside her vagina. Intake put her through an X-ray scanner and a strip search, and neither detected the drugs.⁴ She later admitted to investigators that she had hidden the substances to evade detection.³

Two days later, on July 13, Zuniga shared what witnesses described as Xanax bars that also contained methamphetamine and fentanyl with three other inmates. The women snorted the substances between lunch and dinner and again after dinner. Around 8:23 p.m., inmates alerted detention officers that women in two cells were unresponsive or on the verge of passing out.³ Officers found four women in medical distress and transported all four to Parkland Memorial Hospital.⁵

Zuniga herself began convulsing and vomiting at the jail’s nurse station, telling the nurse she had taken “fentanyl and bars.”⁶ Three of the women survived. Quinetta Brinkley was pronounced dead at Parkland Hospital at approximately 9:25 p.m.³

From Murder Charge to Delivery Counts

Zuniga was initially charged with murder for providing the fentanyl that caused Brinkley’s death, alongside the trespassing and possession charges from her original arrest. Her bond was set at $501,000.⁴

The Dallas County District Attorney’s Office ultimately indicted her on two delivery-related counts rather than the murder charge: delivery of a controlled substance causing death and delivery causing serious bodily injury.¹ The most serious count carried a punishment range of 5 to 99 years.

Who Quinetta Brinkley Was

Brinkley, known to her family as “Ari,” was 21 and the mother of a one-year-old daughter. She had been raised since the age of two by her 74-year-old grandmother, Opal Brinkley, in the Oak Cliff neighborhood of Dallas. Her uncle Reginald Brinkley described her as fiercely independent with a “knack for defending herself,” and said her incarceration was related to altercations rather than drug use.⁷

After her death, the family said they were notified by the Medical Examiner’s Office but heard nothing directly from the Dallas County Sheriff’s Office. “Motto, to protect and serve went out the door,” Reginald Brinkley told reporters. “Now she’s gone because somebody didn’t do their job.”⁷

How The Drugs Got Past Intake

The Dallas County Jail screens new inmates with an X-ray scanner and pat-down searches at booking. Cavity searches are conducted when the scanner flags something or at an officer’s discretion, and the jail maintains two designated rooms for that purpose. In Zuniga’s case, neither the scanner nor the strip search detected what she had concealed internally.³

Dallas County Commissioner John Wiley Price acknowledged the limits of intake screening, noting that the facility handles roughly 7,000 inmates with about 1,450 detention officers and a 10 percent vacancy rate. “We’re not going to check every cavity,” Price told reporters, while saying the incident was not an indictment of jail staff.⁴ The Dallas County Sheriff’s Office conducted an internal investigation but never publicly released its findings, and no reforms specifically tied to Brinkley’s death have been announced.¹

1
CBS News Texas. Woman Sneaked Deadly Drugs Into Dallas County Jail via Body Cavity Sentenced to Prison
2
Dallas County District Attorney’s Office. The Justice Journal Vol. 80
3
NBC DFW. Dallas County Jail Death Investigation Smuggling Drugs
4
Fox 4 News. Inmate Charged With Murder After Overdose Death at Dallas County Jail
5
WFAA. Dallas Inmate Death Murder Charge Drug Smuggle
6
Yahoo News Canada. Woman Smuggled Drugs Into Dallas Jail
7
CBS News Texas. Dallas Family Blames Sheriffs Office for Overdose Death of Inmate