Three people who sold fentanyl and heroin in Laredo are now all headed to federal prison. The drug deals took place across the street from Kawas Elementary School.
The last of the three was sentenced on Sept. 16. Federal prosecutors in South Texas made the case public on Tuesday.
They said Freddy Serano, 42, was the last one in the case to be sentenced. He pleaded guilty on April 7.
U.S. District Judge Marina Garcia Marmolejo gave him 18 months in federal prison. After that, he gets three years of supervised release. That means a federal officer will keep watch on him when he gets out.
The case grew out of undercover work. It ran from May 8 to Aug. 25, 2025.
During that time, undercover officers bought drugs from Maritza Navarro. They bought 3.916 grams of fentanyl and 9.95 grams of heroin from her, prosecutors said.
Then the officers found out where Navarro got her drugs. Her supply came from two men, Arturo Martinez and Serano.
The undercover buys took place across the street from Kawas Elementary School.
Navarro, 43, got 48 months in federal prison.
Martinez Jr., 34, got 24 months.
Serano got 18 months, the shortest term of the three.
Prosecutors said all three were part of the same drug plan. They call that a conspiracy. It means two or more people worked together to break the law.
Serano is in jail now. He will stay locked up until he is moved to a federal prison. That prison has not been picked yet.
The DEA ran the case. That is the federal drug agency. Assistant U.S. Attorney Leslie Ann Cortez took the case to court.
Prosecutors did not say which prison any of the three will go to.
They did not say if any drugs were sold to kids. They did not say if the buys took place during school hours. They only said the buys took place across the street.
