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Aberdeen Today
By the People, for the People
K9 Helps Aberdeen Police Uncover Drugs During Traffic Stop
K9 Marco detected narcotics in a vehicle, leading to the arrest of a Parkville driver on drug distribution charges.
Published on Feb. 24, 2026
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During a routine traffic stop in Aberdeen, Maryland, a police K9 named Marco alerted his handler to the presence of narcotics in the vehicle. A subsequent search uncovered individually packaged crack cocaine, suspected fentanyl capsules, and a digital scale with drug residue. The driver, Mackinley C. Williams Jr., 44, of Parkville, was arrested and charged with felony drug distribution and related offenses.
Why it matters
This incident highlights the important role that K9 units play in assisting law enforcement in detecting and preventing drug-related crimes. K9s like Marco can help officers uncover hidden narcotics that may have otherwise gone unnoticed, leading to the arrest of suspected drug dealers and the removal of dangerous substances from the community.
The details
On the evening of February 13, an Aberdeen police officer pulled over a vehicle for a routine traffic stop. The department's K9 unit, led by K9 Marco, was called to the scene and scanned the vehicle. Marco alerted his handler to the presence of narcotics inside the car. A subsequent search uncovered individually packaged crack cocaine, suspected fentanyl capsules, and a digital scale with residue consistent with drug distribution. The driver, Mackinley C. Williams Jr., 44, of Parkville, was arrested without incident and charged with felony drug distribution and related offenses.
- On the evening of February 13, an Aberdeen police officer pulled over a vehicle for a routine traffic stop.
The players
K9 Marco
A police K9 unit that assisted in the traffic stop and drug detection.
Mackinley C. Williams Jr.
A 44-year-old Parkville resident who was arrested and charged with felony drug distribution and related offenses.
Aberdeen Police Department
The law enforcement agency that conducted the traffic stop and drug bust.
What’s next
The case against Mackinley C. Williams Jr. will proceed through the criminal justice system, with the judge determining whether to grant bail or keep him in custody pending trial.
The takeaway
This incident underscores the valuable role that K9 units play in assisting law enforcement in detecting and preventing drug-related crimes. By using their heightened senses, K9s like Marco can help officers uncover hidden narcotics and make important arrests, contributing to safer communities.

