At approximately 4:52 PM on Tuesday, July 14, 2026, officers assigned to District B-2 (Roxbury) responded to a radio call to investigate a premise in the area of 35 Mount Pleasant Street in Roxbury. Prior to officers’ arrival, they received information from officers assigned to District C-11 (Dorchester) that a victim had approached them and stated he was robbed of his moped in the area of the aforementioned location.
Officers spoke to the victim who stated he was playing basketball when he was approached twice by two different pairs of individuals who were asking him questions about his moped. The victim stated the second pair told him that the victim would not be leaving with the moped and that they were taking it from him. The victim further stated one of the suspects threatened to shoot him if he interfered and lifted his shirt to display the handle of a firearm within his waistband. The victim stated the suspect took his moped and fled with a larger group of individuals.
Officers arrived on scene at Mt. Pleasant Street and began to canvass the area for the suspects. Officers’ attention was drawn to the sound of a revving engine coming from the area of 22 Greenville Street. As officers approached, they observed a large group of eight males congregating around five mopeds. Officers were able to determine that none of the moped were registered and an inquiry led to the discovery that two of the mopeds were reported stolen. Officers recovered the victim’s moped and were able to return it to him.
Officers continued to search the immediate area where they were able to recover a firearm underneath a grill lid that was resting on the ground. Once the firearm was secured, all of the individuals were then detained as officers continued their investigation.
The firearm was determined to be a KelTec P11 9MM handgun.
As a result of the investigation, two individuals were taken into custody.
Officers arrested Jayden Mari O’Brien, 18-years-old, of Dorchester and Paxton Jean-Guillaume, 18-years-old, of Brockton. Both are expected to be arraigned in Roxbury District Court.
O’Brien is charged with Armed Robbery, Carrying a Firearm without a License, Threat to Commit Crime, Malicious Destruction of Property, and Receiving a Stolen Motor Vehicle.
Jean-Guillaume is charged with Armed Robbery, Receiving a Stolen Motor Vehicle, and Malicious Destruction of Property.
The remaining individuals were identified and released from the scene.