Man Died After August Arrest in San Antonio
Mark Tyson Cardwell passed away in a hospital after his arrest for driving while intoxicated.
Updated on Sept. 22, 2026 in Substance Abuse

Mark Tyson Cardwell died at a hospital on August 26, 2026, after life support was withdrawn following his arrest by the San Antonio Police Department. He was 51 years old at the time of his death.
Why it matters
Authorities are investigating the circumstances surrounding the death of the 51-year-old, who was taken into custody shortly after midnight on a suspected DWI charge and an active felony warrant.
Mark Tyson Cardwell was 51 years old at the time of his death. This case marks the 28th in-custody death reported in Bexar County during 2026.
The players
Mark Tyson Cardwell
He was a 51-year-old man who died after being taken into police custody.
San Antonio Police Department
This local law enforcement agency is responsible for policing the city and filed the custodial death report.
Bexar County Medical Examiner
This office is tasked with investigating the cause of death for individuals who die while in police custody.
The details
After being stopped shortly after midnight, Cardwell was evaluated by medics who cleared him at the scene before he was taken into custody. Officers moved him to a recovery position after he reported breathing difficulty while in a patrol vehicle.
Timeline
Officers stopped Cardwell's vehicle shortly after midnight on August 26, 2026.
Cardwell died at the hospital on August 26, 2026, at 4:45 p.m.
The San Antonio Police Department filed a custodial death report on August 31, 2026.
Health Landscape
The filing of the official police report follows the mandatory Texas custodial death reporting requirements, which mandate documentation within 30 days of an in-custody death. This ensures transparency in investigations for all deaths occurring within the regional justice system.
Residents in the San Antonio area should note that the death is currently under investigation by the Bexar County Medical Examiner. The process follows established state mandates for reporting all in-custody deaths to ensure public accountability.
The takeaway
The ongoing medical examiner investigation will provide necessary clarity regarding the medical factors leading to this death. Public access to custodial death reports serves as a standard mechanism for local community oversight.
Further reading
For broader context regarding local health and safety investigations, visit Substance Abuse.










