by | Published
SAN ANTONIO - Retired Bexar County Sheriff's Deputy Michael Saunier, who suffered permanent injuries after being exposed to hazardous chemicals while responding to a train derailment more than two decades ago, died Sept. 6 from complications related to that exposure, the Sheriff's Office announced.
Saunier was the first deputy to arrive at the June 28, 2004, train collision in the 9200 block of Nelson Road, according to the Bexar County Sheriff's Office.
The collision caused a derailment that released approximately 60 tons of chlorine and ammonium nitrate.
Saunier was immediately exposed to the chemicals after arriving at the scene. Recognizing the danger, he warned other responding units to remain clear of the area, an action the Sheriff's Office said prevented additional injuries.
Saunier soon developed severe breathing problems and was treated by emergency medical personnel. The chemical exposure caused permanent damage and continued to affect his health for the rest of his life, according to the Sheriff's Office.
For his actions during the emergency, Saunier received the Star of Texas, Purple Heart and Life Saving Medal.
The Sheriff's Office said Saunier died Sept. 6, 2026, from long-term complications related to the chemical exposure he suffered while responding to the derailment.
He had been hired by the BCSO on December 8, 1989 and retired on October 6, 2006.
