A 21-year-old man was arrested at about 12:45 p.m. Tuesday near American Canyon after he allegedly sold about a half pound of marijuana to undercover agents, Napa Special Investigations Bureau Lt. Leroy Anderson said.
Julian Melgoza posted an online advertisement on Craigslist to sell marijuana, Anderson said.
The alleged sale occurred in a shopping center parking lot at the corner of West American Canyon Road and Highway 29. Melgoza was arrested on Broadway south of Mini Drive in Vallejo, Anderson said.
Agents found another half pound of suspected marijuana packaged in baggies for sale in his car, NSIB said.
Melgoza was booked into the Napa County jail on suspicion of marijuana sales, NSIB said.