An Arlington County Public Schools employee sold marijuana to a 13-year-old, police said.
Zachary Van Dyke, 32, also took the minor to his residence, where the two smoked marijuana, the Arlington County Police Department said.
Van Dyke was arrested on a charge of contributing to the delinquency of a minor and distribution of marijuana.
Van Dyke was a teaching assistant at Gunston Middle School and coached freshman basketball at Washington-Lee High School. Arlington County Public Schools suspended Van Dyke, pending the investigation's results.
Those with information about the case should call police at 703-228-7156 or email firstname.lastname@example.org. To report information anonymously, contact the Arlington County Crime Solvers at 866-411-8477.