Montgomery County Traffic Stop Leads to Drug and Firearm Arrests; DPS Takes Over
A traffic stop conducted by the Montgomery County Sheriff’s Office South Patrol Division on April 18, 2025, resulted in the arrest of two individuals and the discovery of suspected fentanyl-laced Oxycodone pills, THC, marijuana, and a handgun.
During the roadside investigation of a Dodge Journey, deputies detected a strong odor of marijuana. The Shenandoah Police Department K-9 Division assisted, and their K-9 alerted to the presence of narcotics. A subsequent search of the vehicle yielded:
- 6.4 grams of suspected Oxycodone (counterfeit blue M30 pills, possibly laced with Fentanyl)
- 1 gram Tetrahydrocannabinol (THC) vape pen
- 0.277 ounces of marijuana
- Glock 19x 9mm handgun
The driver, 35-year-old Marco Castillo, was arrested and charged with Possession of a Controlled Substance with Intent to Deliver (First-Degree Felony) and Unlawful Carrying of a Weapon. The passenger, 32-year-old Luis Castillo, was charged with Possession of a Controlled Substance (State Jail Felony) and Possession of Marijuana.
The Montgomery County Sheriff’s Office has turned the ongoing investigation over to the Texas Department of Public Safety Special Agents for further action.
