Police said the incident began earlier in the day when a 32-year-old man's car broke down in Frederick. Police said he took a cab to a doctor's office in Baltimore County for an appointment.
According to county police spokeswoman Det. Cathy Batton, the man told police that he then met two strangers, a man and a woman, who offered him a ride to a pharmacy in Glen Burnie, where he filled his prescription for Oxycodone, a narcotic pain medicine.
The couple then drove the man to Timonium where they picked up an acquaintance. When they stopped in Timonium, the victim got out of the car to retrieve his duffel bag from the trunk, according to the report. There was a struggle and the pills were taken from him.