SAN ANTONIO -- Mathew Jackson, the man shot and killed by an off-duty Bexar County deputy, died from a single gunshot wound to the chest, according to a Bexar County Medical Examiner report obtained by KENS 5.

Jackson, 29, died in the early morning hours of Aug. 31 after a confrontation that reportedly stemmed from a minor traffic accident with Bexar County Deputy Anthony Thomas.

According to the Bexar County Sheriff's Office, Thomas felt threatened and fired multiple shots at Jackson. Thomas was off duty at the time of the shooting. The sheriff's office indicated at the scene that Jackson was unarmed.

The report states Jackson left his car and approached Thomas' vehicle. According to information revealed in the medical examiner's report, Thomas then pulled a weapon and fired several shots after he reported seeing something in Jackson's hand. Jackson walked back to his vehicle and collapsed in the front seat.

The report revealed for the first time that Jackson's blood was found inside Thomas' vehicle and that blood evidence was also discovered on the shoulder of the highway in front of his car.

Thomas fired as many as eight shots. Three casings were found in his vehicle, and five were outside his vehicle.

The medical examiner's report also detailed new information on Jackson's fatal injury. It was a bullet wound that perforated his heart and lung, the report stated.

On Friday, Bexar County Sheriff Susan Pamerleau broke her silence in an interview with KENS 5 reporter Dillon Collier. She defended the department's investigation into the shooting.

Pamerleau said the department's review was thorough, and she promised to release the findings regardless of whether Thomas is charged in the incident.

It's still an active investigation while the district attorney is reviewing it. And when that is complete all of the information will come out, she said.

The Bexar County District Attorney's Office has launched its own investigation and will eventually present its findings to a grand jury.

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