Numerous interviews and multiple search warrants lead deputies to Arsonists

Press Release–Medina County Sheriff’s Office began conducting an investigation with the assistance of the Bexar County Fire Marshal’s Office after responding to multiple grass fires in various areas of Medina County between August 9th 2022 and August 12th 2022.
After a lengthy investigation with numerous interviews and multiple search warrants, two suspects were developed. These suspects were identified as Christopher Robert Castro Jr. and Martha Eugenia Caroline Day. Both individuals were interviewed and admitted to starting fires in Medina County between August 9th through August 12th, 2022. Both individuals stated they used a lighter to ignite matches and would throw them out the window and catch the grass on fire.


On August 16, 2024, both individuals were arrested at their homes without incident and booked into the Medina County Jail for the Criminal Offense of Arson. Bonds are set at $50,000 surety for both individuals.
The case is still an ongoing investigation and as the investigation progresses, we will continue to keep the public informed with any significant developments, however due to the sensitive nature of this investigation there are details that we cannot disclose at this time to avoid compromising our efforts.