San Marcos fentanyl dealer sentenced to 10 years prison

SAN MARCOS, Texas - A San Marcos man was sentenced to 10 years in prison for possession with intent to distribute fentanyl.

According to court documents, 20-year-old Colten Romeo Thayer was arrested during a traffic stop on August, 29, 2022. During a search of his vehicle, Hays County deputies found a bag containing 11 grams of fentanyl. Thayer had been purchasing fentanyl pills from other dealers in and around Hays County for personal use and for the purpose of selling them.

<div>Colten Romeo Thayer, 20.</div>
Colten Romeo Thayer, 20.

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Thayer pleaded guilty Dec. 21, 2023. Co-defendant Anthony Perez Rios pleaded guilty to one count of possession with intent to distribute 40 grams or more of a mixture or substance containing fentanyl. He remains in federal custody and is scheduled to be sentenced May 23.

The Drug Enforcement Administration and San Marcos Police Department investigated the case.